x-chock Tire Locking Chock

We have Bal Deluxe locking chocks, an earlier version of the X-Chocks and they do a good job of reducing back and forth movement when moving about inside your rig. When properly installed, they will keep your rig from moving if you are parked on a relatively level sight. For significantly un-level sites, best to also use some plastic chocks in addition to the X-chocks for added safety. There are other similar options available that are both higher and lower priced, many have made their own as well saving big $$$. We also deploy Bal scissor and stab jacks along with our chocks making our rig a pretty solid stance when all said and done.