Sanding sponge is high density sponge coated on abrasive grain, which is used forspecical surfaces of metal paint, wood, plastic by hand. It is high effcient forfine grit products.Feature:1) Flexible and soft2) Dry or wet grinding3) Wash and reuseSpecifications:1) 36 -240 grids2) Silicon Carbide / Aluminium Oxide abrasives3) size: 100*70*25mm four sides 125*100*10mm double sides 125*70*25mm bevel 140*114*5mm sigle side producing area:China