Free shipping available. Home intense r4 massage gun for athletes: well-built with an ergonomic grip, this muscle massage gun delivers the depth and speed of muscle treatment. Ergonomic shape for home gym out: with an easy-grip handle and 5 adjustable angles to rotate the massage head, you can reach hard-to-reach spots without arm fatigue and wrist strain; you can even reach your upper and mid-back, hold the gun in different directions to massage easily - save effort.