The NANO Foot Roller is a lightweight and portable roller designed to increase flexibility and relieve minor muscular aches and pains associated to the foot and forearm. Designed to mirror the feeling of a massage therapist's fingertips, the NANO provides a systematic approach to blood flow by channeling nutrients directly to the tissue. Includes 1-year manufacturer's warranty.empowers people of all lifestyles to move and feel better.  designs and develops innovative massage therapy tools that mimic the touch of a therapist's hands - making their foam rollers, hand rollers, massage sticks and balls ideal for individuals of all ages, sizes, and athletic ability.