20 OZ, 1 Piece, Forged Steel Rip Hammer, 70% Larger Striking Face For Bigger Sweet Spot, Patented Antivibe Tuning Fork Technology Reduces Arm Damaging Vibrations, Exclusive Dual Tempered Head Rims & Claw Reduces Steel Chipping & Cracking, Magnetic Nail Starter For Extended Reach & 1 Handed Nailing Capability, Slip Resistant Textured Handle For A More Secure Grip.