BESTRUNNER 5Pcs 16GB 3.0 Swivel USB Flash Drive Memory Stick Storage Thumb Stick Pen Gift SUPPORT Windows 8, Windows 7, Windows Vista/ 2000 / ME, Mac OS 9.0 or later and Mac OS 10.1 or later. EASY-TO-USE: Capless design with integrated loop makes it easy to attach to key chains, backpacks and etc. 360FREE ROTATION DESIGN: the metal side has a 360 rotation, covering and protecting the usb end while carrying it around and turn back in any position, for the most comfortable use. GREAT FOR ALL AGES AND PURPOSES: suitable for digital data storing, transferring and sharing in school, in family, to friends, to clients, to machines. Apply to data storage of music, photos, movies, designs, manuals, programmes, handouts etc. SERVICE: Thank you for choosing BESTRUNNER products. If you are not happy with BESTRUNNER products, please do not hesitate to contact us. In every customer relationship, BESTRUNNER strives to be a trusted partner and seeks to achieve 100% customer satisfaction.