Binditek 100 Pack Plastic Spiral Binding Coils, 8Mm(5/16"), 40 Sheet Capacity, 4:1 Pitch, Black, 48Loops, For Letter Size, For Students And Coworkers

RAYSON 7/16" Plastic Spiral Binding Coils, 11.1mm Diameter, 4:1 Pitch, 80 Sheet Capacity, Black Coil Binding Spines For Business & School Use, 100

Plutreas 100 Pack Plastic Spiral Binding Coils, 4:1 Pitch, Spiral Binding Spines For Office Documents, Engineer Papers, Business Projects (16mm (140

Rayson 15.9mm Plastic Spiral Coil Binding 3:1 Pitch, 5/8Inch, 140 Sheets Capacity Black Coil Binding Spines - Versatile For Office And Educational

Rayson 7/8" Plastic Spiral Binding Coil, 190 Sheets Capacity, 4:1 Pitch 22.2mm White Coil Binding Spines For Business And Educational Purposes, 50

Rayson 9.5mm Plastic Spiral Coil Binding 3:1 Pitch, 3/8Inch, 60 Sheets Capacity Black Coil Binding Spines - Versatile For Office And Educational Tasks

150 Pack Spiral Binding Coils, 4:1 Pitch Plastic Binding Coils Kit, 6 Different Sizes Spiral Coils For Binding 1/4", 5/16", 3/8", 1/2", 5/8", 3/4",

Binditek 100 Pack Plastic Spiral Binding Coils, 6Mm(1/4"), 30 Sheet Capacity, 4:1 Pitch, Black, 48Loops, For Letter Size, For Students And Coworkers

Plastic Spiral Coil Binding Spine 12" Black 6mm-50mm 30-440 Sheets (Black, 16Mm) - 100 Pack