Storage binder makes organization simple with colorful & vibrant solutions to information storage. Three round rings mounted on the spine secure three-hole punched documents. Rust-resistant metal rings feature double boosters for even opening & closing. 1-1/2" capacity holds up to 350 letter-size sheets. Clear pockets inside front & back covers store loose documents. Stain-resistant vinyl surface wipes clean. Special ribbed seal adds flexible strength at the hinge. Premium-quality vinyl is tightly sealed over a sturdy chipboard core. Ring binder also features exposed rivets.