This is a 0.5mm ZEBRA SARASA ballpoint pen refill with a Peko-chan design. It's a limited edition and is no longer sold, so I think it's rare. I bought it for my collection, so it's unopened, but please understand that it's been stored at home. (No pets, no smokers, stored in a dark place) Depending on the situation, the shipping method may be changed between Rakuraku Mercari Bin and Yuuyu Mercari Bin. - Brand: ZEBRA - Model: Sarasa Clip Peko-chan - Colors: Black, Red - Pen Tip Thickness: 0.5mm - Quantity: 2 black, 3 red - Limited Edition: Limited Edition Thank you for looking.