Hanging Box Files with 1/5-cut tabs are perfect for organizing thick legal-size reports, bulky projects, catalogs and literature. Closed tear-resistant sides prevent things from slipping out. Each file offers a 3" expansion. SureHook technology features longer plastic hooks with built-in tension springs that stay on track, slide easily and don't buckle under pressure. Poly strips reinforce top edges. Design also features Pressboard-reinforcing bottom inserts, clear tabs and printer-ready, blank white inserts.