Metal Book Rings, 3/4" Diameter, 100 Rings/box | Bundle of 5 Boxes

Multi-layered nickel-plating won't crack or split. Locking position for extra security. Easy to operate--pull to open and squeeze to close.You may also like "Self-Adhesive Two-Prong Paper Fastener Bases, 1"" Capacity, 2.75"" Center to Center, Matte Steel, 100/Box | Bundle of 10 Boxes".