3M Sandblaster 180-Grit Fine Sanding Between Coats Sanding Sponge is a high-performance tool designed to make your sanding tasks faster and more efficient. The SandBlaster sanding sponges are engineered to provide up to 3 times longer life and cut up to 3 times faster than traditional sponges. The improved performance of these sponges allows you to tackle a wide range of sanding jobs with ease. The packaging of the SandBlaster sponges is color-coded, making it easy to identify the type of sanding job each sponge is suitable for. The 3M Sandblaster 180-Grit Bare Surfaces Sanding Sponge is made with aluminum oxide mineral, which provides aggressive cutting power and durability. The sanding sponge features a unique design with an aluminum oxide abrasive on all four sides of a urethane foam sponge. This enables you to sand contoured and hard-to-reach surfaces with ease. After use, simply rinse the sponge clean and it's ready for reuse, making it a cost-effective and environmentally friendly choice.