Refill for Mono Zero eraser pen with a round tip with a diameter of 2.3 mm. The innovative precision eraser Mono Zero is available with two differently shaped tips: round tip with a diameter of 2.3 mm and rectangular tip in 2.5 x 5 mm. Erases precisely and cleanly - the ideal tool for professionals and hobby artists, architects, designers, illustrators, and more. The slim body with a sturdy clip is available in two versions: black and white/blue/black. Convenient handling through push mechanism and metal lead guide. Awarded the Red Dot Design Award 2010 and iF Design Award 2010. Length (mm): 118 Width (mm): 10 Height (mm): 10