Hermes developed Multi-Hole abrasive for use with all 1/2 sheet sanders. This high quality abrasive has small holes punched over its whole area to ensure that the extraction air flow can act effectively. No need to worry how many extraction holes your sander has or lining them up. The abrasive is made from aluminium oxide, resin bonded with a long life coating and put onto a special flexible tear proof paper backing making it suitable for all finishing. Available in packs of 10. 115 x 230mm. Mixed pack available containing 2 sheets of each grade.-bg