you receive 6pcs 5inch 8 hole sander sponge pads and 110pcs 5inch 8hole sanding discs, of which the sponge pads are divided into three colors, two of each color, and each color represents three levels of soft, medium and hard. green is hard, yellow is medium, and black is soft. The sanding disc grit is 40/60/80/100/120/150/180/240/320/400/600, and there are 10 sheets of each grit The foam sand pad is made of soft sponge material, which enhances maneuverability and reduces the risk of material burn-through, thereby improving the polishing effect, and the shock absorption performance ensures smooth and precise grinding, extending the service life of accessories. The sanding disc is made of aluminum oxide material, which is very efficient when grinding products. Compared with traditional manual grinding, it is faster, more convenient and more labor-saving There are 8 holes on the orbital sander foam pads to effectively prevent dust from clogging the machine; And two different designs are used on both sides, one side is a hook for sticking to the sanding disc; The other side is a loop for sticking to the sanding pad; Whether it is a dusty environment generated by dry grinding or a humid working condition of wet grinding (such as water-based paint, stone polishing), it can maintain long-term stability Our sponge cushions are available in three hardnesses: soft, medium and hard. You can choose the desired hardness type according to the object you are grinding, which can meet your diverse grinding needs; The red sanding discs are available in a variety of grits, with a total of 110 sanding discs ranging from 40 to 600 grit. Whether it is fast material removal, finishing or final polishing, you can find the right one the sponge pad with sanding discs of grain sizes is very suitable for polishing uneven surfaces, allowing you to easily cope with the polishing needs of materials such as wood, metal, plastic, and the polishing, grinding, and polishing of fu