LEDGER-SIZED - One extra-large 11" x 17" pad with 50 sheets, 4x4 quadrille (4 squares per linear inch); blue lines on white paper DOUBLE-SIDED - 50 Sheets per pad, printed on both sides BORDER-FRAMED - Each sheet has a thick blue border surrounding a 10.5" x 16.5" quadrille grid on both the front and back THICK CHIPBOARD BACKING - Sheets are secured by a glued top-edge binding and supported by a heavy backer board to ensure stability and easy removal from pad VERSATILE - Use for engineering or technical drawings, drafting, drawing blueprints, crafting, or creative drawings One ledger sized 11" x 17" quadrille ruled 50-sheet pad with blue grid and blue 1/4" border. Each sheet is double-sided and sheets are attached to a heavy-duty chipboard backer board to help prevent pad from bending. Glue-bound along the top (11" side), the sheets are easily removed from the pad without worry of dealing with perforated sheets requiring precise tearing.