Like the Mix N Match range, the Swivel Eco follows this evergreen design, although now manufactured in a wheat straw casing instead of the traditional ABS and metal swivel. Available in both USB2.0 or USB3.0 versions. When using a computer’s USB 3.0 port, the USB 3.0 @ 5GB/sec max. transfer speed is theoretically more than ten times faster than USB 2.0 @ 480MB/sec, Grade A memory, 10-year data retention warranty, and 1-year replacement warranty on faulty manufacture. Material: Wheat Straw.