Usage: designed for loose-leaf book, memo filing, key rings, scrapbooking, sample holder or other loose-leaf items.
Made of high quality material which is sturdy and durable to use.
These Binder rings open to hold punched material.
It is designed to pull to open and squeeze to close.
TOYANDONA 12pcs Book Rings Metal Paper Book Loose Leaf Binder Ring Keychain Key Ring 5CM B07QPZXZGL