Hyperice Vyper 3.0The fitness roller, reimagined The Vyper 3. 0 changed fitness rolling forever. Featuring all the traditional benefits of foam rolling amplified by three powerful speeds of vibration, the Vyper 3. 0 is strong, sleek, and durable. Powerful, inside and out The Vyper 3. 0 is constructed of a high intensity vibrating core and rechargeable lithium ion battery encased in an eco friendly high density polypropylene foam for maximum vibration transfer. The