3M Hookit Hand Block helps level repair areas with greater ease. Use this accessory item with our Hookit abrasive products to achieve more consistent, uniform sanding results. Our hand block when used in combination with Hookit abrasives is ideal for achieving a true flat surface. Product Features:Sanding blocks deliver more consistent sanding resultsMakes achieving a true flat surface easierBoosts the efficiency of sanding by handBlocks are designed to limit hand fatigue3M Hookit attachment system makes it easy to change abrasives