Dear customer‎,‎ If you want to buy more than 20pcs these at once‎.‎ You can enjoy a Group Buying Discount and save more money‎,‎ Please contact us to note your wishing list‎,‎ wish you happy shopping‎!‎ Description‎:‎ Net Weight‎:‎ 22g Size‎:‎ Approx‎.‎ 84x26x15mm Writing Speed‎:‎ 30‎-40M/S Reading Speed‎:‎ 10‎-17M/S Capacity‎:‎ 8/16/32/64/128 GB Compatibility with‎:‎ iPad‎,‎ iPhone & Android‎,‎ PC Hot plug & play Compatible with USB 1.1/2.0/3.0 OTG function Leather Design‎,‎ make it elegant Store your pictures‎,‎ videos‎,‎ and songs and any kind of data‎.‎ Support smart phone data cable interface and USB interface‎,‎support cross‎-platform conversion‎.‎ Easy to carry and not easy to lose for its innovative shape Support Windows 7 / 8‎,‎Windows Vista‎,‎Windows 2000‎,‎Mac OS X‎,‎ Linux‎.‎ Small style and fashionable products‎,‎ as an impressive gift for your beloved‎,‎ friends or even customers‎.‎