Motor Guard WB-1 Wonder Block Supreme Sanding Block
Motor Guard Wonder-Block is a rugged, ergonomically designed block designed for maximum gripping power over flat to slightly curved surfaces.  Designed for all typed of paper, this block flexes to conform to the panel shape.The sanding block is made of Closed Cell Neoprene Foam.The sanding block is designed for 2-3/4” Wide PSA Backed Abrasive Rolls.  PSA stands for Pressure Sensitive Adhesive.  This material is widely available in the automotive refinishing trade and on Amazon.  Brands include 3M and Norton.