Material：crmo. Approx Length: 40″ (1000mm). 1 x 3/4″ Drive Breaker Bar 40in. Flexible knuckle joint. Knuckle head: 3/4”. Head rotates 180 degrees. Removable/replaceable head. Traction Bars for Plymouth fit Dodge Dart 1963-1976 Duster 1970-1977.