3M™ Trizact™ Backer Pad is a foam pad with attachment fabric intended to firmly hold 3M™ Trizact™ Diamond Pads for extended periods of time through multiple use cycles. It allows for easy attachment of 3M™ Trizact™ Pads and firmly holds the pads in place. The 3M™ Trizact™ Backer Pad does not clog or require frequent cleaning like floor pads. It has significantly longer life; one backer pad replaces multiple floor pads.