Specifically designed for wet sanding applications, the new Roller-Block RL1 Precision sanding block from Motor Guard contains a soft outer layer to retain water while providing a no-slip gripping surface for the abrasive sheet. A rigid inner layer maintains shape and eliminates transfer of finger marks through the pad. A contoured wrap-around edge allows the abrasive sheet to be lifted up away from the work surface. The Roller-Block utilizes a 5+" x 9" abrasive sheet folded into thirds. No trimming is required.