Three-ring poly binder offers a lightweight design that is ideal for indoor or outdoor use in schools or offices. Stain-resistant surface wipes clean. Polypropylene binder contains no chipboard so this flexible binder is transportation-friendly. Rust-resistant metal rings feature double boosters for even opening and closing. Binder also features spine-mounted round rings and exposed rivets. 2" capacity holds up to 225 letter-size sheets.