Red Hound Auto 1000 LB Boat RV Swing Away Trailer Boat Camper Jack Swivel Wheel Bolt On 1 Side Mounted Premium Swivel Jack with Hardware Easily bolts on and convenient built in handle makes raising and lowering a breeze Fits trailer tongues up to 3.75" wide and 4.25" high; 1,000 lbs Dimensions: 13" retracted height, 23" extended height, 2" outer tube diameter, 6" wheel diameter Attached wheel makes it simple to move your trailer into position