Webb CBC Combo Sanding Sponge Block Coarse 2-5/8-Inch x 3-7/8-Inch x 1-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Dimensions: 2 5/8" x 3 7/8" x 1"</li><li>4-sided coarse (36) grit coating: Brown aluminum oxide</li><li>Ideal for curves， corners， and concave applications</li><li>Backing material: PU Blue Foam (polyurethane)， solvent-free</li><li>Foam hardness: Firm， for highly aggressive uniform surface removal</li><li>Firm， yet flexible foam with durable grit on all 4 sides easily adapts to all surfaces， edges and profiles</li><li>Use wet or dry</li><li>Features clog-resistant technology</li></ul></div><img src="http://ecx.images-amazon.com/images/I/511ZuS4B9YL.jpg" noproxy>