Extra hard wearing aluminium oxide with hook and loop backing. Provides a smoother finish and longer paper life. Suitable for wood and regular steel. Compatible for use with Palm Sanders; Makita BO4555, BO4554, BO4561 and Hitachi. Size 114mm x 102mm. Grit 40. Holes 3 + 3 for dust extraction. Pack quantity 10. Weight: 0.22266688462 Pounds. Manufacturer: Makita.