RAOYI 32GB Waterproof Metal USB2.0 Flash Drive,Silver Aluminum Thumb Drive MATERIAL AND DESIGN: the flash memory is made of aluminum, hard and wear-resistant, polished cover feels good and looks fashionable. INTERFACE TYPE: USB2.0 port, offering you a stable and fast transmission, allows you share all kinds of documents, includes photos, music, videos and files. DURABLE PERFOMANCE: with a function of water-resistant, dustproof, prevent high temperature, magnetic resistance and shock-resistant, make the memory sticks become a perfect data. PORTABLE AND CONVENIENT: key ring shape and lightweight make it very suitable for your keychain; it looks just like a key. BEST SERVICE GUARANTEE: lifetime manufacturer warranty, provide you with return and repaid service when you are in a trouble.