Storex Poly Binder, 0.5-Inch, Assorted Colors, Case of 12 (STX52293B12C) Flexible 0.5 inch binder - fits in backpacks with ease Color coded for easy identification (green, blue, red, purple and black) Will not tear, fray or peel Contains a dirt repellant additive to avoid transferring ink and toner Case of 12 assorted color binders; Colors may vary