Itoya Paper Note Coupler, Semi-B5

This is a connecting sleeve for semi-B5 size paper notebook jackets. The product name is derived from the coupler used on trains. It allows you to neatly connect the covers of two notebooks when storing them together. The slit pocket can be used to hold business cards or memos. *Designed to fit semi-B5 size notebooks (179 x 252 mm). Please check your notebook size before use.