The U disk storage box is made of tinplate, which combines the strength and formability of steel with the corrosion resistance, solder resistance and beautiful appearance of tin in a material with corrosion resistance, non-toxic, high strength and good ductility characteristics. Due to the characteristics of tinplate, good ductility, antioxidant ability, and it can be printed, not easy to break, easy to transport, become the first choice for packaging. The sponge inside can be customized to hold your badge, USB stick, necklace jewelry, refrigerator magnets, etc. Add your company logo or message to customize. 1 location includes the shipping cost to US. Orders of 3,000 pieces or greater are eligible for sea shipping. 100% guarantee for quality. Rush Service.