The Premier 15" 600 Series Fixed Trailer Mounting Jiffy Jack Spring Assembly is the perfect choice for any trailer. It features a jiffy quick release for instant one-lever lowering and retracting of the leg without cranking and a quick action spring activated folding handle that seats in a positive position for travel. The handle is kept short, compact and out of the way. The DOM inner and outer tubes provide a strong precision fit, reducing penetration of outside contaminants. The jack also features an oil cup for convenient lubrication of power screw and gear assembly. This jack is perfect for any trailer and is sure to provide reliable service. FleetPride is your First Click in Heavy Duty®.