100% MANUFACTURER'S WARRANTY: We stand behind of our Products and guarantee to the original purchaser that our product shall be free from defects for a period of one-year limited warranty from the original purchase date. If not complete satisfied with your purchase, simply contact Enfain seller team to make a replacement or refund request. This is part of our 100% Customer Satisfaction Guarantee. EASY-TO-USE TWIST TURN 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.Capless design with integrated loop makes it easy to attach to key chains, backpacks and etc. 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. NO NEED TO INSTALL ANY SOFTWARE: just plug in and use it! Supports Windows 10/ 8/ 7/ Vista/ XP/ 2000/ 98/ ME/ NT Linux, Mac OS and Chrome OS. Compatible with USB 2.0, backwards USB 1.1. GREAT VALUE PACKAGE DEAL: includes 10 pack of 16GB Usb Flash Drive, total 160 GB capacity. Super cost performance package deal offered by the brand manufacturer.