?5 Pack Heavy Duty Leveling Blocks, RV Wheel Stopper Car Tyre Anti-Slip Block for Trailer, Truck y?

Helps prevent jacks from sinking into soft ground.
These camper levelers blocks is made of high quality material for years of rugged use. Solid bottom structure prevents them from sinking on soft ground.
Modular designed levelers not only configure to fit any leveling function, but they also withstand tremendous weight
To use: simply set them into a pyramid shape to the desired height that the RV needs to be raised and drive onto the stack
The levelers can also be used as a support base for other stabilizing equipment
Material:ABS plastic
colour:Orange
Package Contents:
5 * Leveling blocks
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.