RV LEVELING SYSTEM Simply arrange interlocking blocks in the configuration to suit your leveling needs, then drive RV onto blocks. Approx. 8-1/2" x 8-1/2" x 1" high blocks are made of indestructible polypropylene, withstand pressures up to 40,000 psi. Stack them into a pyramid to raise RV to desired height. Use blocks under single wheels, tandem axles, dual wheels, tongue jacks, fifth wheels or hydraulic jacks. Manufacturer's lifetime warranty. To make sure you hit the top of the stack and prevent wheels from moving, order Stop 'N Chock� (sold separately 49ZX7701R). Applications: All Makes All Models, All Makes All Models |