Adjustable suction power through bypass adjustment. No surface damage due to the rounded corners of the Velcro backing. The ergonomic handle with a grip-friendly surface prevents blisters on the hands. Ergonomically shaped sanding pad compatible with Festool sanding medium sizes 115 x 226. The dust-extractable hand sanding block is ideal for sanding corners or hard-to-reach areas on putty surfaces. The suction power can be optimally adjusted using the bypass adjustment. The rounded corners of the Velcro backing prevent injuries to the surfaces being worked on. The ergonomic handle prevents blisters on the hands. Usable with Festool dust extraction hoses thanks to the integrated adapter.