Racing Head Service (RHS) 4602-16 Features: Designed For Unmatched Strength Superior Locking Force For Moderate Lift/Spring Pressure Applications Works Well In All High End Race Applications Height: 9.50 Width: 5.75 Length: 1.50 Weight: 1.44 lbs Vehicle Type: Racing Head Service (RHS) 4602-16 Magnum Polylock