- Wholesale 6T BOTTLE JACK PVC CASE - Grooved Saddle for Load Gripping Power. - Adjustable extension screw. - High quality, glide action pressure pump makes big loads easy to lift. - Minimum height is 7-1/2", lifting height is 5", handle included. - Precision machined piston and cylinder. - Release valve to control lifting functions. - Turn fully clockwise to raise loads. - Turn back slightly counter-clockwise to lower loads.