B.A.S.H® Unbreakable™ Handle Sledge Hammer, 4 lb Head, 16 in Ergonomic Handle ORS NASCO Octagonal heavy duty crushproof couplings Continuous flow Octagonal heavy duty crushproof couplings Continuous flow tube keeps water flowing even if kinked Metal spring collar prevents kinking at faucet Anti bacterial lining prevents deterioration and extends hose life extreme climates Won't rub off slick surfaces like plastics and shrink wrap Permanent ink writes on smooth surfaces such as metal Unbreakable™ Technology—steel core eliminates breaking during overstrikes Safety Plate—secures head to handle preventing head dislodging Ergonomic Handle—shaped and thickened for improved comfort and less vibration Non Slip Grip—vulcanized rubber handle for secure grip while striking Lanyard Hole—safely secure hammer to wrist or stationary object