Specification: Material: carbon steel Color: black Weight: 375.2g Size: M3 * 10mm M3 * 12mm M3.5 * 16mm M3.5 * 25mm M4 * 10mm M4 * 12mm M4 * 16mm M4.8 * 12mm Features: ღ The handy Plastic box have different size compartments for easy storage. ღ Products contain small parts, keep away from children to prevent mistaken swallow! Package Include: 60 x M3 * 10mm 60 x M3 * 12mm 50 x M3.5 * 16mm 30 x M3.5 * 25mm 40 x M4 * 10mm 40 x M4 * 12mm 30 x M4 * 16mm 40 x M4.8 * 12mm 1 x Plastic Box