Semi Circular Design: The 7 inch diameter corner tool features a unique semi circular shape, ideal for working in confined areas, curves, and borders with accuracy, enhancing efficiency on complex shapes Strong ABS Build: Made from tough ABS, this corner tool withstands demanding tasks and performs well on various substrates like wood, metal, synthetic surfaces, and wall panels Versatile Applications: Perfect for carpentry, metal finishing, smoothing, and wall panel preparation, consistently achieving sanding effects across different materials Included Sanding mattresses: Comes with 10 sturdy sanding mattresses in 180 / 240 / 320 grits, providing versatility for extended sanding tasks while smooth and even results Ergonomic Handle: Designed with a secure textured grip for better control and reduced hand fatigue during prolonged use, ensuring stability and accuracy in detailed work, Manufacturer: HZBB