ESTA A FUNCIONAR PERFEITAMENTEThe S356 is a 4 Ton jack with a single hydraulic piston and manual screw extension. It is cast LAKE & ELLIOT LTD 4 TON S356 B. Height closed 9.25"; lift 6.5"; 5 3/8" screw extension; and extended height of 21 1/8".