Binditek Plastic Binding Comb Spines, 1/2 Inch, 19 Ring, Black, 100 Pack Combs, Inch Diameter, 90 Sheet Capacity, for Letter Size, Students and Coworkers

【90 SHEET CAPACITY】 Plastic Binding Combs measure 12mm (1/2") in diameter, perfect for adding and removing paper sheets, can hold up to 90 sheets of #20 paper with a 3mm paper margin. Attention: If you bind with any covers or choose 5mm paper margin, the sheet capacity need to be reduced. 【100 PER BOX】 A box of 100 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.