--- title: "Kuretake ZIG Clean Color Real Brush: Colors & Blending" canonical: "https://stationerytimes.com/guides/kuretake-zig-clean-color-real-brush/" description: "Kuretake ZIG Clean Color Real Brush pen explained: polyester bristle tip, blendable dye ink, color counts and sets, 155 mm size, lightfastness, and origin." category: "Pens" type: "Brush pen" published: 2026-10-20 updated: 2026-10-20 author: "Ellis Penhale" publisher: "Stationery Times" sources: 13 products: - name: "Kuretake ZIG Clean Color Real Brush pen (RB-6000AT, single colors and sets)" brand: "Kuretake" brand_origin: "Japan" made_in: "Japan" material: "Plastic body; polyester bristle brush tip" price_band: "$ (under $5 per pen (multi-packs divided by the count), typical US retail, October 2026)" manufacturer: "Kuretake Co., Ltd. (Japan)" model: "RB-6000AT" mpn: "RB-6000AT-050" --- # Kuretake ZIG Clean Color Real Brush: Colors & Blending > The Kuretake ZIG Clean Color Real Brush is a brush pen with a tip of real polyester bristles and water-based dye ink that blends with water, like watercolor. Kuretake sells single pens (RB-6000AT) and sets up to 120 colors. A UK retailer lists it at 155 mm capped, and Kuretake lists Japan as the country of origin. - URL: https://stationerytimes.com/guides/kuretake-zig-clean-color-real-brush/ - Category: Pens - Author: Ellis Penhale - Published: 2026-10-20 - Updated: 2026-10-20 ![Side view of a capped Kuretake ZIG Clean Color Real Brush pen in Cobalt Blue drawn to scale, 155 mm long and 12.6 mm wide: white barrel with a blue cap and end plug, and an inset of the polyester bristle brush tip](https://stationerytimes.com/images/raster/kuretake-zig-clean-color-real-brush-16x9.png) *A ZIG Clean Color Real Brush in Cobalt Blue, 155 mm capped (drawn at 1 mm = 5 px).* Original drawing (SVG): https://stationerytimes.com/images/kuretake-zig-clean-color-real-brush-cover.svg. Drawings © 2026 Stationery Times, reusable with credit under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). ## Product facts | Product | Brand | Brand origin | Made in | Material | Released | Price range (typical US retail, October 2026) | |---|---|---|---|---|---|---| | Kuretake ZIG Clean Color Real Brush pen (RB-6000AT, single colors and sets) | Kuretake (by Kuretake Co., Ltd. (Japan)) | Japan | Japan | Plastic body; polyester bristle brush tip | – | $: under $5 per pen (multi-packs divided by the count) | - Made in (Kuretake ZIG Clean Color Real Brush pen (RB-6000AT, single colors and sets)): Japan. Kuretake's Japanese order site lists 原産国 (country of origin) 日本 (Japan) for the Pale Color II 6-color set (RB-6000AT/6VH) and the 30-color set B (RB-6000AT/30VB). We didn't find a statement for single pens; a US retailer listing for the 90-color set also says made in Japan. Source: https://order.kuretake.co.jp/products/detail/54248 ## Key takeaways - Each tip is made of individual polyester bristles, not a molded felt nib, so it paints more like a real brush. - Kuretake lists single pens (RB-6000AT) at ¥240 (about US$1.50) before tax in Japan, and has released a 120-color set. - JetPens lists a 10.2 mm grip and a 12.6 mm maximum diameter; a UK retailer gives 15.5 cm (6.1 in) capped. - Kuretake lists water-based dye ink (水性染料インキ) and a 30-color set at ¥7,200 (about US$46) before tax in Japan. - Kuretake's Japanese order site gives Japan as the country of origin for its Real Brush sets. ## What is the ZIG Clean Color Real Brush? **It's a brush pen from Kuretake of Japan with a tip made of real bristles and water-based dye ink you can blend like watercolor.** Kuretake sells it under its ZIG brand as single pens (model RB-6000AT plus a color number) and in sets from 6 to 120 colors. In the US it's sold at JetPens, Walmart and art-supply stores. Walmart's listing for single pens shows 4.1 stars from 310 ratings. ## How is the bristle tip different from a felt brush tip? **Each tip is made of individual polyester bristles, according to Doodlewash's review, rather than one molded felt or fiber nib.** That gives a very fine point for thin lines and a soft, spreading stroke when you press down. Doodlewash notes the tips clean themselves when you brush leftover color off on scrap paper. By contrast, the [Tombow Dual Brush Pen](https://stationerytimes.com/guides/tombow-dual-brush-pen/) has a flexible nylon brush tip, and many lettering pens use a molded felt tip. ## ZIG Clean Color Real Brush specs | Spec | Value | |---|---| | Maker | Kuretake Co., Ltd., Japan | | Type | Brush pen, capped, no clip | | Tip | Polyester bristle brush | | Ink | Water-based dye (Kuretake) | | Length | 15.5 cm (6.1 in) capped (UK retailer) | | Diameter | 10.2 mm grip; 12.6 mm maximum (JetPens) | | Model code | RB-6000AT-number, e.g. RB-6000AT-050 Yellow | | Japanese list price | ¥240 (about US$1.50) per pen before tax | | Made in | Japan (Kuretake, sets) | Kuretake's Japanese order site gives the ink, list prices, JAN codes (single pen No. 001: 4901427205602) and origin. Kuretake doesn't publish a pen length in the pages we found, so we use a retailer's figure. ![To-scale side profile of a capped ZIG Clean Color Real Brush pen at 1 mm = 4 px: 155 mm long, 10.2 mm grip and 12.6 mm maximum diameter at the cap](https://stationerytimes.com/images/kuretake-zig-clean-color-real-brush-dimensions.svg) *The cap is the widest part; the barrel has no clip, so the pen can roll.* ## How do you blend ZIG Clean Color Real Brush colors? **Brush the ink out with water, touch one tip to another, or use a blender pen.** Kuretake describes the pens as watercolor-style; Doodlewash recommends adding water with a separate brush, or touching one pen's tip to another to make a gradient. The trade-off of dye ink is lightfastness: Parka Blogs warns the inks are not lightfast, so scan or photograph work you want to keep. ## Are ZIG Clean Color Real Brush pens safe and odorless? **JetPens lists them as odorless, xylene-free and AP-certified non-toxic.** Doodlewash adds that the pens have safety caps meeting ISO standards. The AP seal comes from the Art and Creative Materials Institute's certification program for art materials. As with any water-based marker, cap the pen between uses so the bristles don't dry out. ## Which set should you buy? **Start with a 12-color set; collectors can build to 180 colors.** Kuretake released a 120-color set and published a guide to collecting 180 colors without duplicates by combining sets. Kuretake also sells small themed sets, such as two 6-color pale-color sets. JetPens also sells single pens open stock, so you can replace the colors you use most. ## How does the Real Brush compare with other brush pens? **It's the most painterly; firmer pens are easier for lettering.** | Pen | Tip | Ink | Best for | |---|---|---|---| | ZIG Clean Color Real Brush | Polyester bristles | Water-based dye | Watercolor effects, illustration | | [Tombow Dual Brush Pen](https://stationerytimes.com/guides/tombow-dual-brush-pen/) | Nylon brush + 0.8 mm fine tip | Water-based dye | Blending, two tips in one | | [Tombow Fudenosuke](https://stationerytimes.com/guides/tombow-fudenosuke/) | Hard or soft felt | Water-based pigment | Small brush lettering | | [Faber-Castell Pitt Artist Pen Brush](https://stationerytimes.com/guides/faber-castell-pitt-artist-pen/) | Felt brush | Pigmented India ink | Lightfast, waterproof line work | | [Pentel Pocket Brush Pen](https://stationerytimes.com/guides/pentel-pocket-brush-pen/) | Nylon bristles | Pigment, cartridges | Inking and bold lettering | ## Where is the ZIG Clean Color Real Brush made? **Kuretake's Japanese order site lists Japan as the country of origin for its Real Brush sets.** Kuretake is a Japanese maker of brush pens and calligraphy ink. A US retailer listing for the 90-color set also says made in Japan. ## Frequently asked questions ### Are ZIG Clean Color Real Brush pens watercolor markers? They're brush pens with water-based dye ink that you can blend with water, a water brush or a blender pen, so they can be used like watercolor. Kuretake describes them as watercolor-style brush pens. ### What is the tip made of? Individual polyester bristles, according to Doodlewash's review, which gives a fine point and broad strokes from the same pen. Most brush markers use a molded felt or fiber tip instead. ### How many colors are there? Kuretake has released a 120-color set and says you can collect 180 colors without duplicates by combining its sets. US and UK retailers often quote 80 or 90 colors, depending on the set. ### Are ZIG Clean Color Real Brush pens lightfast? No. Parka Blogs warns the dye inks are not lightfast, so they suit sketchbooks, cards and lettering better than art meant to hang in sunlight. ### Are they safe and odorless? JetPens lists them as odorless, xylene-free and AP-certified non-toxic. ### How big is a ZIG Clean Color Real Brush pen? A UK retailer lists 15.5 cm (6.1 in) capped, and JetPens lists a 10.2 mm grip and a 12.6 mm maximum diameter. It has no clip. ### Where are ZIG Clean Color Real Brush pens made? Kuretake's Japanese order site lists Japan as the country of origin for its Real Brush sets. Kuretake is a Japanese maker of brush pens and calligraphy ink. ## Sources - [Kuretake order site: ZIGクリーンカラーリアルブラッシュ ペールカラーⅡ･6V (RB-6000AT/6VH; ink, origin Japan)](https://order.kuretake.co.jp/products/detail/54248) - [Kuretake order site: ZIG クリーンカラーリアルブラッシュ 30色セットB (RB-6000AT/30VB; list price, JAN, origin Japan)](https://order.kuretake.co.jp/products/detail/53726) - [Kuretake BtoB order site: ZIG クリーンカラーリアルブラッシュ (single-pen codes, JAN, ¥240 list price)](https://order.kuretake.co.jp/products/list?category_id=193) - [Kuretake Japan: ZIGクリーンカラーリアルブラッシュ 120色セットを発売しました](https://www.kuretake.co.jp/product/brush_pen_articles/create_brush_pen/12096/) - [Kuretake Japan: ZIG クリーンカラーリアルブラッシュ180色の揃え方 (collecting 180 colors)](https://www.kuretake.co.jp/product/brush_pen_articles/create_brush_pen/14928/) - [Kuretake Japan: ZIG クリーンカラーリアルブラッシュ ペールカラー2種を発売](https://www.kuretake.co.jp/product/brush_pen_articles/create_brush_pen/14496/) - [JetPens: Kuretake ZIG Clean Color Real Brush Pen, Yellow 050 (diameters, ink, safety)](https://www.jetpens.com/Kuretake-ZIG-Clean-Color-Real-Brush-Pen-Yellow-050/pd/17121) - [JetPens: Kuretake ZIG Clean Color Real Brush Pen, 12 Color Set](https://www.jetpens.com/Kuretake-ZIG-Clean-Color-Real-Brush-Pen-12-Color-Set/pd/8777) - [Walmart: Kuretake Zig Clean Color Real Brush Pen, Evergreen (ratings)](https://www.walmart.com/ip/1215989128) - [Hobbymaker: Kuretake ZIG Clean Colour 90 pen set (15.5 cm capped)](https://www.hobbymaker.com/en-gb/product/kuretake-zig-clean-colour-90-pen-set/gfpq12/) - [Doodlewash: ZIG Clean Color Real Brush pens review (90-color set)](https://doodlewash.com/zig-clean-color-real-brush-pens-kuretake-review/) - [Parka Blogs: Review of Kuretake ZIG Clean Color Brush Pen (lightfastness)](https://www.parkablogs.com/index.php/content/review-kuretake-zig-clean-color-brush-pen-0) - [The Journal Shop: Kuretake Zig Clean Color Real Brush Pen](https://www.thejournalshop.com/products/kuretake-zig-clean-color-real-brush)