Check the listing for details. 3M 05777 Hookit Soft Interface Foam Backing Pad (6 x 1/2 x 3/4 inch). Condition: New. Listed at 25.26 USD. Our soft density foam 3M Hookit Soft Interface Pad adds cushion and conformability to our Hookit back-up pads for auto body sanding applications requiring precision across uneven surfaces. It increases abrasive cut and enables more consistent contact of abrasive discs around surface contours, plus the pad allows closer sanding to edges for smoother, more refined finishes. Features: Soft foam construction conforms to contours for a finer finish Adds support to disc pad for improved abrasive cut and closer edge sanding Applies effortlessly between Hookit discs and Hookit back-up pads for quick changeouts Hole configurations help clear dust from the work surface, increasing disc life Reduces vibration from orbital sanding tool for improved results