【50 Sandpapers】A range from coarse to fine: P150 sandpaper (150 mm diameter) with hook and loop, designed to meet most polishing needs. 【Material】Made of high-quality aluminum oxide and a high-strength synthetic resin; the thick paper backing ensures that the sandpaper does not tear easily during the polishing process. This prevents potential damage to the sander caused by torn sandpaper. 【Universal Fit】The 150 mm diameter sandpaper is suitable for use with various types of random orbital sanders. 【Easy to Use】The sandpaper has a durable backing with a removable design for quick attachment; they are unperforated (hole-free) – meaning no dust extraction holes – very durable and easy to install and remove. 【Wide Application】These sandpapers are suitable for grinding, polishing, and finishing a wide range of materials, including metal, non-ferrous metals, wood, rubber, leather, plastic, stone, glass, and more – making them extremely versatile and practical.