With a pivoting head that swivels in all directions, the WEN Drywall Sander automatically adjusts to be flush against every surface that crosses its path. Swap on either the circular head or the triangular head depending on the task at hand. Both heads easily detach and install without the aid of any outside tools. Simply slide back the release latch, pick the desired pad shape and get sanding. Adjust the speed anywhere from 600 to 1500 RPM to meet the needs of the project at hand. The hook-and-loop base pad makes sandpaper changes a breeze while the foldable design allows for simple storage and transportation. The lightweight body telescopes to reach lengths up to 5 ft. away. This package includes 6-pieces of hook and loop sandpaper discs and 6-pieces of hook-and-loop triangular sandpaper 60 grit, 80 grit, 120 grit, 150 grit, 180 grit and 240 grit. The improved hole configuration places the sandpaper holes directly below the included dust hose, maximizing dust collection and minimizing cleanup NOTE round head only compatible with replacement sandpaper models DW60SP, DW80SP, DW120SP, DW150SP, DW240SP and DW400SP, triangular head compatible with replacement sandpaper models 6377SP80, 6377SP120, 6377SP150 and 6377SP240. The included flexible dust vacuum hose stretches up to 15 ft. for reliable dust removal during operation. Because it's a WEN product, your variable speed drywall sander comes backed by a 2-year warranty and a stocked inventory of replacement parts.