1. 300 pcs. Abrasive sleeves in three different sizes: these rotating abrasive belts contain 3 abrasive grains (80 , 120 , 240 ) and 3 diameters (1/2 "", 3/8"" and 1/4 "") there are 30 pieces for each grit and size2. 6 pcs. Rubber sanding rollers + 1 double use wrench: diameter of 1/2, 3/8 and 1/4 inch; Length of 38, 40, and 42mm; Diameter (shaft) of 2.35 and 3.17 mm. each size has 2 pieces. 1 double use wrench3. Multipurpose The drill grinder can be used for home use, handicrafts, woodwork, carving, polishing, grinding, metal polishing, rust removal, painting paint removal for metal, modeling, etc. Suitable for materials such as ceramics, stone, glass, wood, etc.4. Easy assembly: The rubber grinding rollers in different sizes serve the grinding sleeves with different diameters, which is practical for installation and use. To attach the sanding sleeve, turn the screw in the sanding roller to enlarge the rubber part and to hold the sanding sleeve tightly around the rubber part while working.5. Highly compatible: Common and standard size suitable for all rotating. The grinding sleeves are suitable for all standard grinders (e.g. as a replacement for Dremel grinding sleeves).