6.4mm Plastic spiral rings PVC single binding coils for books binding

Detailed information:  

1. Material:plastic (PVC)

2. Available thickness: 6mm-51mm

3. Available color: clear, white, blue, red, pink, black etc.

4.Features:

 

  mainly used in binding notebook ,file and calendar

    non-corrosive , non-toxic and non-pollution   

   rigid waterproof and high resisting