RAYSON Plastic Comb Binding Spines, 21 Ring, 55 Sheet Capacity, 10mm, A4 Colorful Combs, Box of 100

Spine Diameter: 10mm, Binding Capacity: 55 sheet, 21 Ring Available in a variety of sizes and colors to bind 2-55 page documents. 3mm margin for binding 2-55 sheets ( max binding thickness: 6mm ) High quality, PVC resins ensure that combs won't chip, scratch, peel or discolour and can be re-used, it can be opend to add or remove pages by comb binder machine Available in seven colors including Black, White, Red, Yellow, Blue, Green, Clear to match your covers. Box of 100, for using with comb binding machine Due to it can be trimmed to 19 ring or any size you want, so it’s fit for binding different paper size. Ideal for home, school, office. Perfect for create your own presentation