1.Widely application: paper binder clips suit for office, home and school daily use, especilly for students, teachers to manage their documents, learning materials by different size binder clips 2.Highly quality material: made of High material, rust-, strong, and reusable 3.Function: spring-tight binder clip keeps files bound together,preventing papers from slipping or pulling out, use different size clips to manage different thickness files, help to fix and Function: spring-tight binder clip keeps files bound together,preventing papers from slipping or pulling out 4.Use different size clips to manage different thickness files, help to fix and seal some specific things, DIY some useful small tools like phone holder, simple hook and so on seal some specific things, DIY some useful small tools like phone holder, simple hook and so on 5.Convenient for storage: these binder clips are packaged in a reusable plastic container for easy storage Name:Paper Binder Clips Size:15mm 19mm 25mm 32mm 41mm 51mm Use:for Office, School and Material:metal colour:black Package Contents: 120 * Binder Clips Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.