QuickSand and PowerSand products will help you complete your project easier and faster than ever, These environmentally friendly sanding blocks last 4 times longer than sandpaper and provide a fast, easy-grip sanding solution for all projects, QuickSand for hand sanding and PowerSand for power sanding both conform to the shape of the sanding surface to provide you with a perfect, evenly sanded finish, Non-toxic, chemical free stripping sanding, Safe and easy to use, Save the equivalent of 1 glass bottle from landfills per stone, Designed to sand and smooth rough wood, Great on any tough wood surface, Block is 4"" L x 2""W x 3""H, SKU: ERSI013