Binditek 50 Pack Plastic Spiral Binding Coils, 25mm(1") Binding Spirals, 215 Sheet Capacity,4:1 Pitch, Black Binding Spines

Binditek 50 Pack Plastic Spiral Binding Coils, 25mm(1"), 215 Sheet Capacity, 4:1 Pitch, Black, 48 Loops, for Letter Size, for Students and Coworkers

Leinuosen 120 Pack Plastic Spiral Binding Coils Kit Spirals Multi Size Coils for Binding Binder Combs Spines(1/4 5/16 3/8 1/2 5/8 3/4 Inch,Black)

Binditek 100 Pack 12 Mil Sand-Textured Polycover - Plastic Binding Cover for Letter Size - Lightly Sanded Finish - Business Reports and Proposals - Square Corners, Un-Punched, Black