o A lightweight sanding block with a firm-but-flexible backing which helps easily restore contours and bodylines. o When used with a vacuum system and compatible abrasives, this 3M(TM) Hookit(TM) Dust Extraction Flexible Sanding Block helps capture dust which can increase abrasive life while helping reduce dust in the shop environment. o The 3M(TM) Hookit(TM) hook and loop attachment system allows for easy abrasive changeouts. o The built-in vacuum control allows the operator to adjust suction to prevent the block from sticking to the substrate while maximizing dust capture. o The family of blocks is available in four lengths: 5 1/4 inch (133 mm), 7 inch (178 mm), 10 3/4 inch (273 mm) and 16 inch (406 mm) – plus a three-size block kit.