Bottle jacks are used for a wide range of lifting applications, both in the shop and for roadside service. They provide a high level of lifting capacity in a very compact and portable unit. Stroke - 3-11/16" Retracted Height min. - 7-1/16" Length of Screw Extension - 2-7/8" Height with Screw Extension - 13-5/8" Pump Strokes to Extend Piston One Inch - 21 Saddle Dia. - 1-3/4" Base Size - 6-9/16" x 4-3/16" Carry Handle - Yes Weight - 15.1 lbs.