Plastic Comb Ring (With Silk-screen Logo Printing):
* Suitable for professional book, broucher and document binding;
* size from 6mm to 51mm;
* Standard colors: Black, white, red, blue, yellow, green;
* Standard sizes: 21 rings (A4 size), 19 rings (Letter size), 15 rings (B5);
* available in folded and unfolded;
* Other colors & sizes are available on request;
* Comb binding machinery available.