Over 20 years’ experience in manufacturing sanding sponges, PHICANT always offer premium sponge sanding block for over 100 countries worldwide. Comparing with sand paper, sanding sponge is more durable and lower cost, upgrade and more efficient for dry or wet sanding. Our Advanges 1 Variety Pack of Sanding Sponges 8 pcs flexible sanding block in total, 4 different grits of coarse 60/medium 80/fine 120/superfine 220 assortment, 2 pcs per grit. Coarse 60 and medium 80 grit sand paper block for removing and moderate sanding, fine 120 and superfine 220 grit sander block for smoothing and finishing. 2 More Efficient & Lower Cost than Sandingpapers Sanding block’s four sides with premium mineral grits, each side are available for sanding, equivalent to a few pieces of sanding papers. More efficient for hand sanding. 3 Washable and Reusable Flexible sanding block, available for rinse and reuse, long lifespan. Suitable for both dry and wet sanding. Drywall sanding sponge, much better than sandpaper. You can cut the sanding sponge into small piece, for detail sanding or DIY sanding. 4 Essential Sanding Tool for Flat or Curved Surfaces Sanding blocks work great for home improvement projects, metal polishing, woodworking, plastic model work, furniture finishing, etc. Most important, flexible sanding sponge can be used to sand flat or contoured surfaces, especially for curved surfaces. Safe and efficient. Specification Material: super high-density foam inside, premium brown corundum on four sides. Dimention of sanding sponge: 4 inch x 2.8 inch x 0.65 inch Package Included Total 8PCS sanding sponges with assortment grits, including 2 x 60 model coarse grit sanding sponge 2 x 80 model medium grit sanding sponge 2 x 120 model fine grit sanding sponge 2 x 220 model superfine grit sanding sponge