High performance abrasives in the fast attachment Hookit version. Supplied in the convenient roll size to be cut on any Hookit™ pad. The 3M™ 245 & 255P HOOKIT™ Rolls are constructed from aluminium oxide mineral. They are opened coat products and the grit is bonded with resin. The 3M™ 245 HOOKIT™ ROLL utilizes an E-weight backing paper while the 255P HOOKIT™ ROLL uses a C - weight paper. C - weight backing paper gives good mineral support for longer product life and sustained cutting action. Features enhanced anti-loading coating to extend product working life. Stiff E-weight paper gives a strong backing and long product life. Resin bond resists heat to prevent premature “burning”. 3M™ 245 and 255P SANDING ROLLS are suitable for sanding most materials by hand or machine.