15 Mil: Each binding cover is made from 15mil (380mic) Polypropylene material, heavyweight. Poly covers are durable and sturdy that protect your persentation from from tears, bends and creases.
Frosted Polycover: These semi-transparent binding covers are designed with a sand-textured finsh. (Attention: This is not clear binding cover).
Square Corner: These plastic binding covers are durable to withstand frequent handling, Work with any binding system (Except Thermal).
Unpunched for Easy Use: Unpunched binding persentation covers can be used with any binding spine, in any binding style that suits your needs.