MECO 10Pcs 4GB USB 3.0 Flash Drive Memory Stick Fold Storage Thumb Stick Pen Swivel Design EASY-TO-USE: Capless design with integrated loop makes it easy to attach to key chains, backpacks and etc. 360 Degree FREE ROTATION DESIGN: the metal side has a 360 degree 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. SUPPORT Windows 8, Windows 7, Windows Vista/ 2000 / ME, Mac OS 9.0 or later and Mac OS 10.1 or later. SERVICE: Thank you for choosing MECO products. If you are not happy with MECO products, please do not hesitate to contact us. In every customer relationship, MECO strives to be a trusted partner and seeks to achieve 100% customer satisfaction.