plastic file binder, plastic file holder clip, paper file holder spring clip Spring clip Description: Item: spring clip Specifications:160/200MM Material: metal/pvc Used for: binding Color: as needed Packing: carton Spring clip Features: 1. can be made of metal and plastic and both. 2. used for office binding, A4 paper file binding, notebook binding, etc. 3. simple designed, elegant looking, and easy to used. 4. damage-free from file. item Rivets distance Packing(pcs/ctn) remarks SC202QSL 62MM 1000PCS QSL: totally made of plastic SC202SLTH 113MM 1000PCS SLTH: plastic with metal spring SC199WJ 113MM 1000PCS WJ: metal SC160WJ 100MM 500PCS