• High-quality material: Made with high-quality materials, featuring smooth edges and good resistance to corrosion, rust, and oxidation, ensuring a long service life. • Easy to use: With a smooth surface and no burrs, the threads are clear and firm, making installation easy and preventing them from loosening. • Easy to store: All screws are organized in a storage box, making them easy to store, use, find, and transport. • Wide applications: Includes screws, nuts, and washers in various popular sizes, suitable for a wide range of applications in machinery, furniture, car and motorcycle repairs, electronics, appliances, and DIY projects. • Accessories list: Includes a total of 16 types of screws with sizes M3*6mm, M3*10mm, M3*14mm, M3*20mm, M4*10mm, M4*20mm, M4*25mm, M4*30mm, M5*10mm, M5*20mm, M5*30mm, M5*40mm, M6*10mm, M6*20mm, M6*30mm, M6*40mm; 4 types of nuts and 4 types of washers; total weight of 900g.