Rayson 5/16" Plastic Spiral Binding Coil, 40 Sheets Capacity, 4:1 Pitch 7.9mm White Coil Binding Spines for Business and Educational Purposes, Pack of 100

Rayson 5/16" Plastic Spiral Binding Coil, 40 Sheets Capacity, 4:1 Pitch 7.9mm White Coil Binding Spines for Business and Educational Purposes, Pack of 100

CFS Products Premium Coil Cutting and Crimping Pliers -Heavy Duty Compatible with CFS, GBC, Fellows, and Trubind Coil and More

Binditek 50 Pack Plastic Spiral Binding Coils, 6mm(1/4"), 30 Sheet Capacity, 4:1 Pitch, White, 48Loops, for Letter Size, for Students and Coworkers