The usb sticks have a nice and sleek design with a metal swivel cover on each memory stick. The aluminum swivel is very smooth - making the flash drives looks stylish and chic! The end of the thumb drives has a loop for a lanyard or key ring to keep it safe or on your keys. Compatible with Windows (Windows 11，10, 8, 7, ME, NT, Vista, XP), Mac (OS X), and Linux systems, work with Desktop, Laptop, Macintosh, Tablet, Speakers and other device with USB ports. Plug and work, no need to install any software, just simply plug into the USB port of computer or other devices and use it! We will be carefully examined before shipment of goods, generally ensure that no quality problem, the buyer can rest assured to buy. If you have any questions, please contact us in time and reply you within 24 hours.