Designed for use with the cylinder head still on the engine and in the car. Works well with the cylinder head removed during a bench repair. A multi-point adjustable base to fit and bolt securely to a variety of heads on most domestic and import car engines. Applications include: Audi, Nissan, Toyota, Chrysler, Honda, Mazda, Mitsubishi, Porsche (924 & 928), Volvo, VW, BMW, Ford, Chevrolet, GMC, Lincoln, Saturn and more. Packed in blow mold case.