Attach the Trailer Jack Block to the pad and level. It's that easy. The Trailer Jack Block offers 5th wheel & RV stabilization, all while reducing stress on your jacks. The built-in magnets instantly attach to the jack, so there is no need to double-check and adjust each block. Each Jack Block is designed to be used with up to 9" round jack pads.
- Instantly attaches to your jack pad using magnets for easy leveling and stability
- Reduces stress on your jacks
- Includes a recessed groove for wheel jacks and post jacks
- 4" Tall unit is rated at 30,000 lb each
- Double stacking of the 4" units is allowed, DO NOT stack more than two high
- Double stacked rating is 20,000 lb
- Made in the USA
California Residents: Proposition 65
