The Mirka® Roundy is ergonomically designed to fit into the palm of the hand and is suitable for multiple operations from paint stripping to lacquer & paint sanding. Grip and 34 dust extraction holes makes the Roundy a versatile and practical hand block for use with both Abranet® grip abrasives and 15-hole 6" grip discs, that can wrap around its sides to assist in reaching corners and other hard to reach areas that require sanding. The Roundy hand block fits to a 0.75" x 13' hose (91100-A).