Aluminium Oxide or Black SiliconCarbide Abrasive Sponge Detailed Description Title: Sanding sponges or blocks Materials: single grain coated on four sides or two sides Usage: Flexible, multipurpose products for smoothing in general Size: 100 x 70 x 25 mm 100x125x12mm Grit: 36-40-60-80-100-120-150-180-220