6" Multi-hole grip faced interface pad Used in combination with hook and loop sanding discs for sanding rounded surfaces and contours Use of the interface pad will also produce a softer result The interface pad is placed between the backup pad and the abrasive disc.Used in combination with hook and loop sanding discs for sanding rounded surfaces and contoursUse of the interface pad will also produce a softer resultThe interface pad is placed between the backup pad and the abrasive discCalifornia Residents Prop 65 warning: Products may contain a chemical known to the State of California to cause cancer, birth defects or other reproductive harm.This product has a manufacturer warranty against defects in materials and workmanship for a period of ONE (1) YEAR from the date of original retail purchase. See our Seller Return Policy for more details.