better office products, 3 ring poly binder with pocket, 1 inch, letter size, 4 pack-assorted colors better office products these solid-colored soft poly binders help protect your homework or other important files that are punched for use with a 3-ring binder. organize files or papers for a class project, home project, and more. note: colors of the 4 binders will be any combination of the following 7 colors: turquoise, black, navy, yellow, mulberry/pink, lilac/purple, clear.