16GB (ROOSTER) Ricco &reg; Premium Mini Sliding USB 2.0 Flash Memory Pen Thumb Drive Stick Strong Polished Metal Housing Embossed with Chinese Astrology Symbols and Zodiac Signs Special Design with Astrology Symbols, Strong Metal Body with Sliding USB Design High-Speed USB 2.0 Flash Memory Plug & Play, Make the ideal gift for anyone who needs to move around different computers. Compatible with Windows 2000/XP/Vista/7/8, MacOS 10.4 or later Dimension: 37 x 17 x 4mm, Weight: 12g (approx.)