• Includes screws, nuts, and washers of different sizes: M3x4, M3x12, M3x20, M4x4, M4x12, M4x20. • Contains a total of 180 screws, 180 nuts, and 180 washers, ideal for meeting most household needs. • Made of high-quality 304 stainless steel, offering resistance to corrosion and rust. • Includes 2 ball head wrenches of 2.5mm and 3mm for greater flexibility in use. • Organized in a storage box with a sticker for easy transport and use. • Suitable for indoor and outdoor applications, such as carpentry, construction, furniture, automobiles, bicycles, household and office equipment, 3D printing projects, communication devices, and boat assembly. • Product dimensions: 10.5 cm wide, 2.5 cm high, and 17.8 cm long.