High quality sanding belt provides outstanding life and durability. Made with aluminium oxide grain with epoxy resin for load resistance. Strong polyester X-weight backing. Fits all 76 x 533mm (3 x 21″) sanders for rapid stock removal. High quality sanding belt provides outstanding life and durability. Made with aluminium oxide grain with epoxy resin for load resistance. Strong polyester X-weight backing. Fits all 76 x 533mm (3 x 21″) sanders for rapid stock removal.