【High Quality Materials】The sandpaper is made of aluminum oxide particles, which are durable and anti-static to provide long-lasting and effective sanding. The Velcro paper on the back is designed to help maintain a strong grip and prevent slipping during use. 【120PCS Sandpaper Set】Each piece of sandpaper has a diameter of 125 mm and a total of 8 small holes. There are a total of 12 models with different grits in the combination we offer, each with 10 sheets of polishing sandpaper, 40/60/80/100/120/150/180/240/320/400/600/800. 【Note Granularity】The smaller the particle size, the higher the friction, and the larger the particle size, the lower the friction. If you just want to polish the material a little, it is recommended to use a higher grit size. 【Attention】This sandpaper is a dry abrasive product, please do not spray water or wet sand. It is best to store the product in a dry and ventilated place, as moisture will affect the product's lifespan. The sandpaper is suitable for most