Choi Paper Fasteners by Kokuyo are truly ingenious! You can add notes to books without having to cover the important stuff with a post-it. These extra sticky washi fasteners allow you to attach additional notes to your textbooks or notebooks, and your additional notes will even lay flat when you fold over your added note in order to neatly close up your book. You need to try these for yourself! Once again, innovations in Japanese stationery are solving every day problems! Choose from laces, safety pin, clips, and rings. Each set includes 30 fasteners.