Sandpaper Roll, Abrasive Type Coated, Abrasive Material Ceramic, Attachment Type PSA, Backing Material Paper, Backing Weight C, Coating Coverage Closed, Color Blue, Grit 400, Series 321U, Overall Length 135 ft, Overall Width 2 3/4 in, Resistance Properties Load, Product Type Sandpaper Roll, Vacuum Holes Non-Vacuum, Package Quantity 5