Hongtellor Binder Rings, 40Pcs 30mm/1.2 inch Nickel Plated, Loose Leaf, Index Card, Small Book Rings for Flash Cards, Office, School, Home, Papers, Keychains

【Material】Binder rings are made of good nickel plated metal are rustproof, strong and durable.It is laser polished to a smooth finish so it will not scratch the hand when opened. 【Standard Size】The package includes 40 Pcs loose leaf binder rings. Outer diameter: 30mm (1.2 inch), inner diameter: 25mm (1inch). Each binder ring can hold up 160 sheets loose leaf papers. 【Lock Tight design】The Loose Leaf Rings are easy to operate, you just need to pull it to open and squeeze it to close,which will not be dislocated when opening and closing. It will keep the paper in place even if the papers are moved by a large margin. 【Easy To Open/Close】Easy to use. Hold ends of the opening with both hands, then push forward with one hand and backward with the other with a little force. 【Widely Used】This kind of binder rings are suitable for loose-leaf, memo filing, key rings, scrapbook, sample holders,drawer file or cabinet organized and so on