* Aluminium, silicon sand sponges * Abrasive sponges for polishing sanding * Density: low (black), medium (white), high (grey) Level 1 grit and top grade resin glue are usedStable performanceTop grade qualityReusableIdeal for polishing furniture, metal and plasticGrit: 40.5#, 60-240# availableMaterial coat on sponge: Aluminium Oxide, Silicon CarbideAbrasive Sponge Sanding BlockArt.No.Size (inch) ...