Shopline Loose Leaf Rings Binder Keyrings, 10 Pcs (1 inch) Product Name : Loose Leaf Ring;Color : Silver Tone Material : Metal Binder rings lock securely; made of tough steel can withstand heavy use; strong nickel plating won't crack, split or bend; ideal for fastening any size document stack and keys and swatches too! Multi-layer nickel-plated steel will not crack or split; rings open and close easily and lock for extra security; easy to operate: pull to open and squeeze to close