Rayson CR6100M Plastic Binding Combs 14in 21Ring 20Sheet Capacity Colorful Comb Binding Spines Max Binding A4 Size Paper 83117 Box of 100

The 21 hole comb binding ring fits A4 sized paper 83 x 117inches which is not a standard US letter paper size 85 x 11inches Binding letter size need to use the scissor to cut off two rings The picture shows the difference between A4 and letter size paper Sheet Capacity 20 Spine Diameter 14 Number of Rings 21 length 118inches 30cm Get a professional edge QuantityUnit 100Box Available in a variety of sizes and colors to bind 220 page documents 3mm margin for binding 220 sheets max binding thickness 008in2mm 6mm margin for binding 10 sheets max binding thickness 004in1mm Designed for a variety binding of paper size Perfect for internal reports and functional documents