Binditek 50 Pack Plastic Binding Comb Spines, 2 Inch Diameter, 450 Sheet Capacity, 19 Ring, for Letter Size, Black, Students and Coworkers

450 SHEET CAPACITY: Plastic Binding Combs measure 51mm (2") in diameter, suitable to add and subtract paper sheets, can hold up to 450 sheets. 50 PER BOX: A box of 50 Binding Combs ensures long-term productivity for all of your binding projects, allow you to bind paper sheets with ease and store for a long time. FOR LETTER SIZE: The 19-ring binding comb in black fits letter sized paper(8.5x11"), the length also could be cut by scissor in personal requirement. EASY TO USE: Plastic Binding Combs compatible with any standard 19-ring comb-binding system, suitable for internal reports and functional documents WIDE USES: Binding combs can be used in business project, office documents, family plan, presentations,restaurant menus and more. They serve as amazing gifts suitable for teachers, students, and coworkers.