Highlights: Large Triangular head & specialized pivot machanism make the Trigon180 a great non-flip detail sander. 56% larger than standard rectangle sanders. The replaceable all-in-one foam pad & bumper make corner sanding stutter-free & fluid without damaging the adjacent corner. Removable center hub can be swapped out with the Radius360 sanding tool or with the Pro handle adapter to create a hand held sanding tool.