[seven different grits]: the sandpapers range from coarse to fine for rough sanding, moderate polishing, and smooth finishing.the number is marked on the back of each sheet for easy identification. [comfortable grip]: the mini detail sander fits snugly under your index finger and has soft, lightweight feel that's comfortable to hold.this small sander can easily access tight space and quickly handle larger areas without tiring your hand. [wide application]: the hand sander is ideal for small sanding needs, such as diy crafts projects, woodwork, sanding corners or small grooves in wooden furniture, model making, and detailed sanding. [micro sander set]: this set includes a total of 70 pieces of sandpaper in various grits (80#, 120#, 180#, 240#, 320#, 400#, 600#), each with 10 pieces, and 1 manual sanding block. [easy to use]: it suitable for any project and ideal for narrow or hard to reach space, it's suitable for detailed sanding tasks as well as smaller gaps and corners., Weight: 1.5652820602 pounds, Manufacturer: N\A