Vaughan Fiberglass hammers feature patented, hollow core fiberglass handles that provide better balance and more effective shock absorption than typical solid fiberglass handles. Extra resin Is forced into the neck section under high pressure, saturating the fiberglass fibers to prevent fraying from overstrikes. A hollow core in the grip section absorbs shock, providing the balance and feel of wood. The head is steel wedged and epoxy sealed to the handle for extra strength. These hammers have a slip resistant grip that is contoured for comfort.