If you need to hand finish a tight spot, you can rely on the 3M™ Hookit™ dust-free sanding block. This backing block helps you get consistent results while reducing the strain on your hands. This block uses the Hookit™ attachment system for easy abrasive changes and small holes for use with a vacuum attachment to reduce dust and loading. These make it ideal for sanding filler, primer and more. The 3M™ Hookit™ dust-free sanding block is the perfect companion when you have a high-dust project in a tight spot. This sanding block fits comfortably in the hand to help reduce instances of hand fatigue while delivering consistent application of pressure for more uniform results. A sanding block also lets you apply more pressure than you could simply with your hand, a benefit that will help improve how quickly you can complete your project.