Aluminium oxide. Full resin bond. Flexible backing paper. Long-life, high-performance abrasive. Open coat reduces clogging. Use with 1/2 sheet sanders, palm sanders and for hand sanding. 115mm x 50m roll. Aluminium oxide. Full resin bond. Flexible backing paper. Long-life, high-performance abrasive. Open coat reduces clogging. Use with 1/2 sheet sanders, palm sanders and for hand sanding. 115mm x 50m roll.