The 19 holes comb binding ring fits letter size paper (8.5 x 11.0inches). Max. Sheet Capacity: 20 (When binding 20 sheets, remember the margin is 3mm); Spine Diameter: 1/4"; Number of Rings: 19; length: 10.7inches / 27.2cm Get a professional edge! Quantity/Unit - 100/Box. Available in a variety of sizes and colors to bind 2-20 page documents. 3mm margin for binding 2-20 sheets ( max. binding thickness: 0.08in/2mm ) , 6mm margin for binding 10 sheets ( max. binding thickness: 0.04in/1mm ) Designed for a variety binding of paper size. Perfect for internal reports and functional documents. Plastic Combs give a professional appearance to bound reports and presentations. From sales presentations to educational materials and financial reports communicate your ideas with professional polish.
Rayson comb ring offer a variety binding of paper size, binding letter size (8.5"x11.0") paper and below with Sheet Capacity: 20; Spine Diameter: 1/4"; Number of Rings: 19.