Ali Industries Fluted Silicone Carbide Concrete (6068) Coarse bricks with sturdy handle for easier use. For rubbing down concrete and overhead floor and wall work. Fluted for fast cutting silicon carbide. For rubbing down concrete and overhead floor and wall work. Fluted for fast cutting silicon carbide. 8" X 3", rubbing brick, 20 grit brick used for smoothing corners edges after removal of forms. Excellent for industrial and Domestic use. Used for dressing down concrete and removing marks. Product is manufactured in United states. This product meets customer requirement. Features Coarse bricks with sturdy handle for easier use Product is manufactured in United States This product meets customer requirement USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.