Strengthen punched holes and protect them against the effects of people turning the pages. Transparent PP reinforcement rings.
3L Extra Strong Vinyl Reinforcement Ring (Pack of 1000) 8215-1000 FC5006
Avery 934241 Clear Vinyl Reinforcement Rings Pack 500
3L Self-Adhesive Paper Reinforcement Ring (1000 Pack) 10415
Fabricating strong and tough aramid fibers by small addition of carbon nanotubes
Reinforcement Ring, Permanent - 3L Office
3L
Fisher Clark Self-Adhesive Paper Reinforcement Ring Pack of 1000 WS5002 - Hunt Office Ireland
FOUNDATION DESIGN AND CONSTRUCTION
Ring Binder Reinforcements
South West Office Supplies
Self-adhesive Filing Strips, Permanent - 3L Office
Reinforcement Ring Pack of 1000