Compiled from 10 sources; we haven't tested this product ourselves yet. How we research
Quick answer
The uni-ball R:E3 BIZ (URE3-1000-05) is Mitsubishi Pencil's erasable 3-color gel pen, with black, red and blue 0.5 mm ink, a knurled metal grip and a metal clip. It launched in Japan on November 29, 2019 at ¥1,000 (about US$6.30) before tax. Mitsubishi Pencil now lists it as discontinued, and its URR-103-05 refill ends production in 2026.
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The R:E3 BIZ in Navy, drawn to scale from Shibuya Stationery's 149.9 mm; part lengths from Mitsubishi Pencil's photo.
Product facts
Product
uni-ball R:E3 BIZ erasable 3-color gel pen (0.5 mm; URE3-1000-05)
Matte-painted barrel, knurled metal grip and metal clip (Mitsubishi Pencil); metal refills with thermo-sensitive erasable ink
Released
November 2019*
Price range
$$$5–20 per pen (multi-packs divided by the count)
Colors
Navy
Special editions
Ink colors
black
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Notes on these facts
Made by Mitsubishi Pencil Co., Ltd.. Country of manufacture not stated: Mitsubishi Pencil's press releases and FAQ, the Amazon US listings and the Shibuya Stationery and Plaza Japan pages we read on October 26, 2026 don't state a country of manufacture. Price: example listing. Released: Japanese launch date in Mitsubishi Pencil's press release of November 21, 2019. Mitsubishi Pencil's FAQ now marks URE3-1000-05 as discontinued; it gives no end date.
Colors: names per Mitsubishi Pencil Japan, checked October 26, 2026. Five standard colors and four 2019 limited colors per Mitsubishi Pencil's November 21, 2019 release, plus two limited colors from its February 5, 2020 release (names romanized from the katakana). Every color holds the same black, red and blue ink. Body tints were sampled from Mitsubishi Pencil's launch photos; ink tiles are generic tints, not sampled. Tints are representative, not measured. Shops stock different colors.
Price bands are typical US retail, checked October 2026. Conversions to US dollars are approximate, at October 2026 rates (US$1 = ¥158 = ₩1,330 = NT$32.5 = CN¥6.7 = SEK 9.9 = DKK 6.7 = ₺49.6 = C$1.41 = A$1.43 = CZK 21.7; €1 = US$1.12; £1 = US$1.32; CHF 1 = US$1.21).
Key takeaways
Mitsubishi Pencil launched the R:E3 BIZ in Japan on November 29, 2019, at ¥1,000 (about US$6.30) before tax, twice the standard R:E3's ¥500 (about US$3.20).
It holds three 0.5 mm erasable inks, black, red and blue: you twist the barrel to choose a color and click the end.
Shibuya Stationery lists it at 149.9 mm (5.9 in) long, 12.7 mm across and 17 g.
Mitsubishi Pencil's FAQ marks the pen as discontinued and says its URR-103-05 refill ends production in 2026.
Mitsubishi Pencil says the ink turns colorless at 60 °C (140 °F) and up and may come back near −10 °C (14 °F), the same triggers Pilot gives for FriXion.
What is the uni-ball R:E3 BIZ?
It’s the business version of uni-ball’s erasable 3-color pen: black, red and blue 0.5 mm erasable gel ink in a slim barrel with a knurled metal grip and a metal clip. Mitsubishi Pencil launched it in Japan on November 29, 2019, a year after the plastic R:E3, and aimed it at meetings and formal office use.
R:E is Mitsubishi Pencil’s erasable line, launched in 2017. The company says the name stands for words like rewrite, repeat and retry. The pen is no longer made: Mitsubishi Pencil’s FAQ marks it as discontinued.
Mitsubishi Pencil doesn’t publish the length or weight, so those come from Shibuya Stationery, a Tokyo shop that ships abroad.
Color
Order code
JAN
Black
URE3100005.24
4902778257074
Bordeaux
URE3100005.65
4902778257081
Navy
not listed
4902778257050
How does R:E erasable ink work?
The ink is thermo-sensitive: Mitsubishi Pencil says it turns colorless at 60 °C (140 °F) and above. Rubbing with the eraser on the end makes enough friction heat to trigger a chemical change, so nothing is scraped off and you can write over the same spot again.
The eraser is a soft elastomer that Mitsubishi Pencil says leaves almost no crumbs. Pilot gives the same 60 °C trigger for FriXion, and both inks can come back in the cold.
Same trigger, same risk: heat erases both inks, and cold can bring them back.
How do you switch colors and erase?
Twist the barrel until its dot lines up with the color’s mark on the front section, then click the end. To change color, click once to retract the tip and twist again. Mitsubishi Pencil calls this a rotating select-knock, and it replaces the sliders of most multi pens so the barrel can stay slim.
To erase, retract the tip, pull off the end cap and turn the pen upside down. Mitsubishi Pencil says a lock then holds the knock rod still, so the eraser doesn’t wobble as you rub.
How is the BIZ different from the standard R:E3?
It swaps the plastic parts for a knurled metal grip and a metal clip, narrows the grip, and paints the barrel matte. Mitsubishi Pencil says the grip is slimmer than the standard R:E3’s 12.7 mm body, and the clip is narrower too.
R:E3 BIZ
R:E3
Model
URE3-1000-05
URE3-500-05
Body
Matte paint, metal grip and clip
12.7 mm slim barrel
Price before tax
¥1,000 (about US$6.30)
¥500 (about US$3.20)
Launched
November 29, 2019
November 29, 2018
Both use the same URR-103-05 refills and the same mechanism, and both are now discontinued.
Is the R:E3 BIZ still made?
No. Mitsubishi Pencil’s FAQ marks the R:E3 BIZ and the standard R:E3 as discontinued, and says the URR-103-05 refill ends production in 2026. Its refill list also marks the single R:E pens as discontinued.
Mitsubishi Pencil says the metal refill holds about twice the ink of its same-size plastic refills, so a spare lasts a while. If you like the pen, buy refills while shops still have them.
Where can you buy the R:E3 BIZ in the US?
Mostly from Japanese shops that ship abroad; US stock has run out. On October 26, 2026, both Amazon US listings (Black and Bordeaux) said currently unavailable, and Plaza Japan’s Navy was out of stock. Shibuya Stationery in Tokyo had Black in stock at ¥2,000 (about US$13), which puts it in our $$ band.
R:E3 BIZ or FriXion Synergy 3?
Choose the FriXion Synergy 3 unless you want the R:E3 BIZ’s metal grip enough to stock up on refills.
R:E3 BIZ
FriXion Synergy 3
Inks
Black, red, blue
Black, red, blue
Tip
0.5 mm
0.4 mm Synergy Tip
Length, weight
149.9 mm, 17 g
145 mm, 13 g
Body
Knurled metal grip
Resin, metal clip
Status
Discontinued
Current; JetPens sells it
A Shibuya Stationery customer wrote that the R:E3 BIZ takes a little longer to erase than FriXion. For a single color, our best erasable pens roundup starts with Pilot’s FriXion Clicker, and the FriXion Synergy Clicker suits small handwriting.
Frequently asked questions
Is the uni R:E3 better than FriXion?
Not for most buyers now. The R:E3 BIZ has a metal grip and a twist-to-select knock, but Mitsubishi Pencil has discontinued it and its refill ends production in 2026. Pilot's FriXion Synergy 3 is current, sold in the US by JetPens, and refills are easy to find.
Is the uni-ball R:E3 BIZ discontinued?
Yes. Mitsubishi Pencil's FAQ on the R:E3 marks both URE3-1000-05 (BIZ) and URE3-500-05 (standard) as discontinued, and says the URR-103-05 refill ends production in 2026. Some shops still have stock.
What refill does the R:E3 BIZ use?
The URR-103-05, a 0.5 mm metal refill with erasable ink in black, red or blue. Mitsubishi Pencil says the metal tube holds about twice the ink of its same-size plastic refills. To change one, unscrew the front section counterclockwise with the tip pointing up.
Why did my R:E3 writing disappear?
Heat. Mitsubishi Pencil says the ink turns colorless at 60 °C (140 °F) and above, so a hot car or direct sun can fade or erase it. Erased writing may come back at around −10 °C (14 °F).
Can I use the R:E3 BIZ to sign documents?
No. Mitsubishi Pencil says not to use it for securities, addresses or anything that must not disappear, because heat or rubbing can erase the ink.
Is the R:E3 BIZ a gel pen or a ballpoint?
A gel pen. Mitsubishi Pencil's releases call it an erasable ballpoint pen, a Japanese term that covers gel pens, but it files R:E refills under gel-ink ballpoint refills. Shibuya Stationery sells it as an erasable gel pen; Amazon US calls it a ballpoint.
What does R:E stand for?
Mitsubishi Pencil says R:E sums up words such as rewrite, repeat and retry, meaning to do something again, because the ink can be erased and rewritten many times.
