Sealey Trolley Jack 4 Tonne Rocket Lift Yellow 4040AYSingle piece hydraulic unit with heavy base design and large jacking saddle. Universal joint release mechanism allows safer, more controlled lowering of the jack. Rocket Lift feature brings lifting arm into contact with jacking point with minimal pumps. Polyurethane wheels provide smoother manoeuvrability and help prevent damage to workshop floor. Magnetic wheel nut retention tray. Protective jack handle sleeve helps prevent accidental damage to car