Material：crmo. Knuckle head: 3/4”. 1 x 3/4″ Drive Breaker Bar 40in. Flexible knuckle joint. Head rotates 180 degrees. Removable/replaceable head. Approx Length: 40″ (1000mm). 24″ High Pressure Radiator Cleaner Wand 23.62in Stainless Steel Flush Tool Kit.