--- title: "Marvy Uchida Le Pen: 0.3 mm Fineliner in 36 Colors" canonical: "https://stationerytimes.com/guides/marvy-uchida-le-pen/" description: "Marvy Uchida Le Pen explained: the 0.3 mm plastic-point fineliner, water-based dye ink, 36 colors and sets, Le Pen Flex, length, and where it's made." category: "Pens" type: "Fineliner" published: 2026-10-24 updated: 2026-10-24 author: "Ellis Penhale" publisher: "Stationery Times" sources: 8 products: - name: "Marvy Uchida Le Pen 0.3 mm fineliner (4300)" brand: "Marvy Uchida" brand_origin: "United States" made_in: "Japan" material: "Plastic barrel and cap, micro-fine plastic point (Uchida); metal clip (Hunter Paper Co)" price_band: "$ (under $5 per pen (multi-packs divided by the count), typical US retail, October 2026)" manufacturer: "Uchida of America, Corp. (Torrance, California)" model: "4300" mpn: "4300-1" url: "https://uchida.com/products/le-pen" --- # Marvy Uchida Le Pen: 0.3 mm Fineliner in 36 Colors > The Le Pen (model 4300) is Marvy Uchida's capped 0.3 mm fineliner with a micro-fine plastic point and water-based dye ink, sold by Uchida of America in Torrance, California. Uchida says it comes in 36 colors, each barrel matching its ink, and calls it its best seller. The pen is printed Made in Japan. - URL: https://stationerytimes.com/guides/marvy-uchida-le-pen/ - Category: Pens - Author: Ellis Penhale - Published: 2026-10-24 - Updated: 2026-10-24 ![A capped black Marvy Uchida Le Pen drawn to scale at 145 mm (5.7 in), with an inset of its 0.3 mm plastic point](https://stationerytimes.com/images/raster/marvy-uchida-le-pen-16x9.png) *The black Le Pen, drawn to scale from Boston General Store's 5.7 in length.* Original drawing (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) | |---|---|---|---|---|---|---| | Marvy Uchida Le Pen 0.3 mm fineliner (4300) | Marvy Uchida (by Uchida of America, Corp. (Torrance, California)) | United States | Japan | Plastic barrel and cap, micro-fine plastic point (Uchida); metal clip (Hunter Paper Co) | – | $: under $5 per pen (multi-packs divided by the count) | - Made in (Marvy Uchida Le Pen 0.3 mm fineliner (4300)): Japan. Uchida's own product photo of the black Le Pen (read October 24, 2026) shows MADE IN JAPAN printed on the barrel. Hunter Paper Co and Boston General Store also list it as made in Japan. Source: https://uchida.com/products/le-pen ### Marvy Uchida Le Pen 0.3 mm fineliner (4300) colors - Ink colors (18 standard, 0 special edition): 1 Black; 2 Red; 3 Blue; 4 Green; 6 Brown; 7 Orange; 8 Lavender; 9 Pink; 10 Light Blue; 11 Light Green; 15 Olive Green; 21 Dark Grey; 28 Burgundy; 33 Oriental Blue; 73 Teal; 78 Orchid; 99 Periwinkle; 106 Amethyst. - Per Marvy Uchida (https://uchida.com/products/le-pen), checked 2026-10-24. The 18 colors Uchida sells singly on its US store, with Uchida's color numbers; Uchida says the full range is 36 colors, including fluorescent and pastel shades sold in sets, and Hunter Paper Co lists 42 names. Tints were sampled from Uchida's product photos. Shops stock different colors; check the listing. ## Key takeaways - Uchida says the Le Pen comes in 36 colors, and sells 18 of them singly on its own US store, from Black and Burgundy to Periwinkle and Amethyst. - Uchida lists water-based dye ink and a micro-fine plastic point; retailers and Uchida's own Amazon set titles give the point as 0.3 mm. - Boston General Store lists the pen at 5.7 in (145 mm) long. - Uchida's product photo shows MADE IN JAPAN printed on the barrel, and two retailers list Japan as well. - On Amazon US the black 12-pack had 1,149 ratings averaging 4.7 stars on October 24, 2026. ## What is the Marvy Uchida Le Pen? **It's a slim capped fineliner with a 0.3 mm plastic point and water-based dye ink, made in Japan and sold in 36 colors.** Uchida of America, which sells it under the Marvy Uchida brand, calls the LePen its best seller. It recommends it for bullet journals, planners, forms, scrapbooking and letters. Each barrel is the color of its ink, so a cup of Le Pens doubles as a color chart. The model number is 4300; single colors add Uchida's color number, as in 4300-1 for black. ## Marvy Uchida Le Pen specs | Spec | Value | |---|---| | Brand | Marvy Uchida (Uchida of America, Corp.) | | Model | 4300; colors 4300-1 (Black) to 4300-106 (Amethyst) | | Type | Capped fineliner | | Point | Micro-fine plastic point (Uchida), 0.3 mm (retailers, Uchida's Amazon set titles) | | Ink | Water-based dye; smear resistant and quick drying (Uchida) | | Colors | 36 (Uchida); 18 sold singly on uchida.com | | Length | 5.7 in (145 mm), per Boston General Store | | Clip | Metal (Hunter Paper Co) | | Safety | Non-toxic, conforms to ASTM D4236 (Uchida) | | Made in | Japan | | Price band | $ (under $5 per pen) | Uchida's own page calls the point "micro-fine" without a number. The 0.3 mm figure comes from Hunter Paper Co, Boston General Store and Uchida of America's Amazon set listings. ![Le Pen at 145 mm drawn to scale next to a STAEDTLER pigment liner 308 at 136 mm and a uni PIN at 139 mm, both capped](https://stationerytimes.com/images/marvy-uchida-le-pen-lengths.svg) *The Le Pen against two pigment fineliners, lengths to scale; its width is drawn by eye.* ## What colors does the Le Pen come in? **Uchida says 36 colors, and sells 18 of them one at a time on its US store.** The singles run from Black, Red, Blue and Green to Lavender, Oriental Blue, Teal, Orchid, Periwinkle and Amethyst. The rest come in sets, such as the 6-piece Pastel set (coral pink, pale blue, pastel peach, peppermint, wisteria and yellow) and the 6-piece Neon set of fluorescent colors. Hunter Paper Co lists 42 names, adding newer shades such as Cocoa, Terracotta and Matcha, so counts vary by shop. | Set (Uchida item) | Colors | |---|---| | 4300-4A Primary | Black, blue, red, green | | 4300-4B Black | All black | | 4300-10B Dark | Black, red, blue, green, brown, lavender, olive green, dark grey, burgundy, oriental blue | | 4300-10C Bright | Blue, orange, lavender, pink, light blue, light green, teal, orchid, periwinkle, amethyst | | 4300-6P Pastel | Coral pink, pale blue, pastel peach, peppermint, wisteria, yellow | ## Is the Le Pen ink waterproof or archival? **No: Uchida lists a water-based dye ink, which it calls smear resistant and quick drying, not waterproof.** Hunter Paper Co calls the ink water-resistant, but Uchida's own page makes no such claim. For ink that resists water and fading, a pigment fineliner such as the [Sakura Pigma Micron](https://stationerytimes.com/guides/sakura-pigma-micron/) or [STAEDTLER pigment liner 308](https://stationerytimes.com/guides/staedtler-pigment-liner-308/) is the safer choice. The Le Pen's strength is its color range on thin paper. ## What is the Le Pen Flex? **A brush-tip sister pen, item 4800, with a flexible rubberized tip for hand lettering.** Uchida's 30-piece Le Pen Flex set holds one of every Flex color, so it's a separate pen rather than a Le Pen with a different nib. ## Who makes Le Pen? **Uchida of America, Corp., the Torrance, California company behind the Marvy Uchida brand, established in September 1973.** JetPens describes Uchida of America as an affiliate of Japan's Uchida Yoko, but we didn't find that confirmed on a Japanese company page. We also found no Japanese-market page or Japanese name for the Le Pen. ## How does the Le Pen compare to other fineliners? **It offers far more colors, but in one size and with dye ink rather than pigment.** | | Le Pen | Pigma Micron | [uni PIN](https://stationerytimes.com/guides/uni-pin-fineliner/) | |---|---|---|---| | Ink | Water-based dye | Pigment | Pigment | | Sizes | 0.3 mm | 0.15 to 0.70 mm lines (003 to 12) | 0.03 to 1.2 mm | | Colors | 36 | 17 in the 05 and 08 | Six in the 05 | | Made in | Japan | Japan | Not stated | Our [best fineliners](https://stationerytimes.com/guides/best-fineliners/) roundup compares more pens by use. ## Where is the Le Pen made? **Japan.** Uchida's own product photo shows MADE IN JAPAN printed on the black barrel, and Hunter Paper Co and Boston General Store list Japan as well. On Amazon US, the black 12-pack had 1,149 ratings averaging 4.7 stars, and Uchida's 4-piece black set had 1,075, on October 24, 2026. ## Frequently asked questions ### Is the Le Pen waterproof? No. Uchida lists a water-based dye ink and calls it smear resistant and quick drying, not waterproof. For water-resistant lines, use a pigment fineliner such as the Sakura Pigma Micron. ### Does Le Pen bleed through thin paper? Uchida says it works well on thin papers, and recommends it for planners and bullet journals. That's a maker claim; we haven't tested it yet. ### How many colors does the Le Pen come in? Uchida says 36. Its US store sells 18 singly and the rest in sets, such as the 6-piece Pastel and Neon sets, while Hunter Paper Co lists 42 names including newer earth tones. ### What is the difference between Le Pen and Le Pen Flex? The Le Pen has a 0.3 mm plastic point for writing; the Le Pen Flex, item 4800, has a flexible rubberized brush tip for hand lettering. Uchida's 30-piece Flex set holds one of every Flex color. ### Is Marvy a Japanese company? Marvy Uchida is the brand of Uchida of America, Corp., in Torrance, California, established in September 1973. The Le Pen itself is printed Made in Japan. ### Is the Le Pen made in the USA? No. Uchida's product photo shows MADE IN JAPAN printed on the barrel, and Hunter Paper Co and Boston General Store list Japan too. ### How long is a Le Pen? Boston General Store lists it at 5.7 in (145 mm); Uchida doesn't publish a length. That's longer than a capped STAEDTLER pigment liner (136 mm) or uni PIN (139 mm). ## Sources - [Marvy Uchida: LE PEN (micro-fine plastic point, water-based dye ink, 36 colors, item 4300 sets and 18 single colors; read October 24, 2026)](https://uchida.com/products/le-pen) - [Marvy Uchida: LE PEN FLEX 30 piece set (flexible rubberized brush tip, item 4800)](https://uchida.com/products/le-pen-flex-24-piece-set) - [Marvy Uchida: About Us (Uchida of America, Corp., established September 1973, Torrance, CA)](https://uchida.com/pages/about-us) - [Hunter Paper Co: Marvy Uchida 4300 Le Pen 0.3 mm (made in Japan, metal clip, 42 colors)](https://hunterpaperco.com/products/marvy-uchida-le-pen) - [Boston General Store: Le Pen (5.7 in long, 0.3 mm tip, made in Japan)](https://www.bostongeneralstore.com/products/le-pen) - [Amazon US: MARVY UCHIDA Le Pen black, 12-pack (B01N14P6L6; 4.7 stars, 1,149 ratings; October 24, 2026)](https://www.amazon.com/dp/B01N14P6L6) - [Amazon US: Uchida Of America 4300-10B 10-Piece 0.3 Point Size Le Pen Drawing Pen Set (B00IO4IFHO)](https://www.amazon.com/dp/B00IO4IFHO) - [JetPens: Marvy brand page (Marvy described as a brand of Uchida of America)](https://www.jetpens.com/Marvy)