Torin 1000 lbs Trailer Jack with Wheel, Heavy Duty Swivel Boat Trailer Jack Single Whee, 10″ Lift, Bolt-on Trailer Tongue Jack for RV Boat ATR39001B, Silver

Swing-back bolt-on trailer jack easily raises and lowers any trailer up-to a 1/2 ton (1,000 lb) capacity
Adjustable height from 10-1/2″ to 20-1/2″ and fits trailer tongues 3″ to 5″
Painted with Zinc, which is corrosion resistant; Convenient wind handle delivers fast, smooth cranking
Equipped with a sturdy 6″ wheel that provides low-friction mobility, allowing you to move your trailer into position easily
Includes a limited 1 year manufacturer warranty