Loose Leaf Binder Rings Metal Silver Book Binder Rings Paper Rings Clips Key Rings Index Cards Rings Great for Home School Office. Operating Instructions: Convenient to use just pull to open and squeeze to close; the misalignment occurred after opening, because the binder ring itself did not use spring or other elastic devices, in order to make the bite tightness after closing more tightly, so this design was used. Tips: As it is a newly produced product, only difficult to open it for the first time, Please use tools to assist in opening.