This is a B5, 26-hole binder. 【Specifications】 Size: Approximately 220 x 280 x 40 mm Metal fittings: Inner diameter 19 mm, medium size (made in Japan), holds 100 sheets Made of bright navy cowhide with a high-quality split leather lining. It has a solid feel. Uses high-quality leather. This binder is made with plenty of cowhide. The leather used has a firm, resilient feel. The more you use it, the more character it will develop. There may be marks from the cow's blood vessels on the surface, but please consider this part of the character. #Memo #Information #Organization Made by Daichiro Uematsu Workshop We also make the Paracare series of planners. Please refer to them. Type of notebook/memo pad: Loose-leaf, plain Paper size: B5 (no description)