Litop 8GB Leather Wrist Band Shape USB 2.0 Memory Disk U Disk USB Flash Drive for Transfer Data (Silver with Black, 8GB) Wrist band's length is 9.5 inches, please make sure the band is suitable for you before you place your order Store and save all your photographs, videos, movies and music via any USB 2.0 port Easy to use, just plug in and play directly, no need any extra power supply Operating system supports windows 7 /8, Vista/XP/2000/ME/98/910, Mac OS 8.6 above and Linux, etc. High speed in writing /reading transfer, 100% quality guarantee