Kennedy® Hydraulic bottle jacks have large cast iron bases with a steel housing and lift cylinder, that has an adjustable notched load saddle. Each jack is fitted with an overload protection valve. Two piece pumping handle also operates hydraulic release. <br><br>For use on a firm level surfaces. DO NOT work under the raised vehicle until another means of support, such as axle stands are in place <br><br>GS and TUV approved.