Dual nylon wheels provide increased surface area for smooth, steady travel, is more stable, with less sinking.The nylon tires can run through mud or over gravel and sharp rocks without getting stuck or damaged . And the tread helps prevent sliding in wet conditions . The side-wind handle is oversized ,easy to grip,doesn't take a whole lot of effort to operate the jack,which lets you raise the entire trailer up and down easily, minimal cranking for quick adjustment . Equipped with a swivel bracket would ensure the plenty of clearence while towing your trailer.The jack swings up and out of the way for towing and features a heavy-duty pull pin to securely lock into place. Includes mounting hardware. This product is a side-mount jack and can be bolted or welded on trailer frame,easy for travel and storage.Great for everyday , camper, marine trailers,fisherman or boating enthusiast