This electric-hydraulic jacks are made by heavy-duty thick steel plate with integral anti-oxidation coating body which is rust-proof and wear-resistant. The large contact surface design enhances the stability, and the reinforced solid screw prevents the electric car jack from tearing or twisting. An essential tool for outdoor emergencies. Product Specifications: Material: metal, plastic Working voltage: 12V DC Maximum capacity: 5 tons Lifting range: approx. 15-43cm / 5.9x 17 Jack size: approx. 30 x 17 cm / 11.8 inches x 6.7 inches Package weight: approx. 5.69 kg