Product Description One-piece solid steel construction. Vibration reduction technology for reduced fatigue and joint discomfort. Co-molded contoured handle with contoured grips for comfort and control. High luster, full polished finish. From the Manufacturer Plumb 16oz Solid Steel Hammer features a shock absorbing weight forward design with contoured grip that greatly reduces vibration so it can be used all day with less fatigue and a lower chance of joint discomfort