The Sunex Tools 2 Ton Engine Crane with Dual Pump Pistons, No. 5222, features a low-profile design. Its 4.7" legs are designed to fit under a wide range of vehicle frames, and it folds up to save space in shops. The dual pump pistons lift the boom 25 percent faster than single pump designs, according to the company. A heavy duty, drop forged steel hook swivels 360 degrees for ease of use, eliminating lengthy chain that cause the engine to swerve and sway when in transport.