Sponge sanding block 1,Polishing Wood, Metal and Plastic 2,Sand very homogeneous 3,size and color can be customized Sponge sanding block1)General dimension:100x70x25mm ... 25mm2) Coated material: Aluminum Oxide and Silicon Carbide3) Density of sponge: low, middle and high··4) For polishing furniture,paint,kitchen ... etc.5) special size can be produced according to customer Sponge sanding block