Multi-layered nickel-plating won't crack or split.Locking position for extra security.Easy to operate--pull to open and squeeze to close.Tough steel rings can handle heavy use.Ideal for keys and swatches too!Loose-leaf rings made with multi-layer nickel-plated steel will not crack or split. Rings open and close easily and lock for extra security. Ring Size: 2"; Ring Material(s): Nickel-Plated Steel.