Features: 1. Durable Material: This rugged trailer wheel dock is made of high impact resistant material, which can effectively prevent breakage and can be used repeatedly. 2. Strong Stability: The trailer tongue jack wheel dock holds trailer jack casters in place for more stable placement on uneven surfaces and slippery terrain. 3. Prevent Wheel Sinking: The trailer jack wheel dock helps prevent the trailer tongue wheel from sinking into soft surfaces such as soil, sand, dirt, gravel, and grass. 4. Safe to Use: The trailer tongue jack wheel dock is bright yellow for high visibility, helping to avoid misplacement and providing caution for accident prevention. 5. Wide Applications: Suitable for RVs, caravans, trailers, speedboats, yachts, and more. This wheel stabilizer allows safe parking in various locations and is easy to transport and store. Specification: Item Type: Heavy Duty Wheel Dock Material: ABS + Metal Applicable: RV, caravan, trailer, speedboat, yacht, etc.