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. Full Engine Gasket Kit Head Bolts for BMW Z4 35i X6 35i N54 3.0L 2007-2016.