Zirconium provides longer lasting discs whilst giving more rapid stock removal, saving time. 4x longer lasting than conventional abrasive. Suitable for wood, painted surfaces, metal and plaster. Anti-Clog Technology, Open coating, Excellent Dust Removal, Double Bonded - Resin over resin, Film backing for long lasting sanding and durability, Universal pattern - 8 holes. Trend Abrasives Increase productivity giving a high quality finish. Fits all main brand sanders DeWalt, Makita, Metabo, Bosch and Milwaukee. Trend Sanding Sheet 93mm x 185mm 40G (10 Pack) Zirconium.