Product Specification:<br> Type: DIY Loose Leaf Rings<br> Material: Metal<br> Size: 3.0x38x45mm<br> Color: Black<br> Function: Use For Clip Ring Gate Key, Installing Shower Curtain or Loose Leaf Book.<br> Use: These Binder rings open to hold punched material. Used for loose-leaf book, memo filing, key rings, scrap booking, sample holder or other loose-leaf items.<br> Advantage: Made of high quality metal can withstand heavy use, multi-layer plating color, beautiful and anti-rust, rings open and close easily and lock for extra security.<br> Easy to Operate: Pull to open and squeeze to close, ideal for fastening any size document stack and keys and swatches.<br> Package: Pack of 50pcs Loose Leaf Rings