Isocore, 3 lb, wedged demolition head club hammer, concentrates force for up to 5x more destructive power than traditional designs & directs debris to the sides, not back at you, extra large diameter driving head improves strike accuracy, patented isocore shock control system absorbs strike shock & vibration to reduce the punishment your body takes, transferring 2 times less shock & vibration than wood handles, ideal for single handed use when doing precision demolition work demolition head or when driving masonry nails, stakes or chisels driver head.