Engineering Materials: The sandpaper holder is made of strong ABS material with soft, lightweight and durable handle and pad, which provides more comfortable hand feeling when you use this hand sander. hand. No smell, ideal for both dry and wet sanding. Ergonomic arc handle: The hand sander with sponge handle is comfortable to hold. The non-slip and anti-wear design reduces fatigue when using the hand sander and makes it easier to improve the working speed. Easy to use and secure clip: The metal clamps on the sides are very robust. They hold the sandpaper securely, faster and easier, making it possible to change different grits of sandpaper. After cutting the sandpaper, you can use it to sand. Size: 7.3 x 3.6 inch (18.5 x 9cm) size wall painting sanding pad , suitable for 9 x 3.6 inch (23 x 9cm) sandpaper. Four color base sandpaper holders are randomly delivered (blue, green, red, yellow). Easier sanding: It is used with sandpapers (not included). Perfect for polishing variety of materials like wood, plastics, metal, stone, for painting the surface.