Ledger Book Vinyl-Guarded Post Binders, 2 Inch Capacity, 11 x 17 Inch Sheets for Accounting, Financial (W241-66NA) Toplock mechanism with slide button cover releases for easy sheet change Supported vinyl over stiff heavyweight boards Full-length metal hinge on both covers Includes threaded top post and inner sections for up to 2 Inches of capacity Individually shrink-wrapped