3M 372L Sanding Belt, 4 in W x 54 in L, 30 Micron Grit, Extra Fine Grade, Aluminum Oxide Abrasive

3M Sanding Belt, 54 in Length, 4 in Width, 30 Micron, Extra Fine, Aluminum Oxide Abrasive, 5 mil Polyester Film Backing, Green, Applicable Materials: Gelcoat, Soft Rubber, Soft Composite, Fiberglass, Hard Composite, All Metals, Solid Surface and Hard-Filled Rubber Applicable

• Fast cutting abrasive for precise, uniform, close tolerance finish
• High-strength polyester film backing resin bonded for durability