This is KOKUYO's "Harinacs" stapler, a 10-sheet handy type that uses no staples. Since it binds paper without staples, there's no need to refill staples or separate them for disposal. It can bind approximately 10 sheets of copy paper. It has a window to check the position of the binding hole and markings for convenient corner binding. It employs a structure that prevents the binding hole from shifting. There are no noticeable stains, but please purchase only if you understand that this is a used item. - Brand: Harinacs - Type: Stapler - Features: Staple-free Thank you for viewing.