Roll R1 Percussion Massager, Carbon Black distancespike with its high rebound FuelCell

with its high rebound FuelCell midsole and carbon fiber plate

Four speeds (1800rpm

this sandal is made from one piece of light

Synthetic/mesh upper

Roll R1 Percussion Massager, Carbon Black distancespike with its high rebound FuelCellIntroducing the R1 Percussion Device. Developed using feedback from elite and professional athletes, the R1 was designed with four key elements: compact and powerful, exceptionally quiet operation, over 7 hours of battery life, and built with the highest quality of materials. The R1 operates with 40W of power (50W max power), has 4 speed settings, 4 unique attachment heads and is packaged in a beautiful, aircraft grade aluminum anodized body for long