22 Oz AnitVibe Framing Hammer. Patented torsion control grip technology reduces the effects of torque on wrists and elbows. Patented AntiVibe technology minimizes vibration and shock at impact. Magnetic Nail Start feature for extended reach and one-handed nailing capability. Checkered face design increases control & accuracy when driving nails. Forged, one-piece steel construction for increased strength and durability.