Change your Tool, change your mind! Introducing the Trigon 180 Drywall Sanding Tool from Full Circle International. For years drywall contractors, and painters alike, have been requesting a trianglular sanding tool that will allow them to get into the corners, and sanding the wall without flipping. The Trigon 180 solves the problem. The large triangular head and specialized pivot mechanism make the Trigon180° a great non-flip detail sander. The Trigon180° is 56% larger then standard rectangle sanders. The replaceable all in one pad and bumper make corner sanding stutter free and Fluid without damaging the adjacent corner. Much like the sole of a tennis shoe; this patented replaceable pad is made up of 2 layers: 1. a firm wear resistant rubber. 2. Thin pliable layer of foam. These 2 layers act like a shock absorber on the work surface. A walls surface is not truly flat. The flexible nature of the Trigon180 forms to the wall giving you a perfect finish. Hard sanding pads have a tendency to bridge and streak the soft finish compound.