If you have been camping in an RV without stabilizer jacks, you know that every movement inside the RV makes the motorhome rock back and forth. Get more support with the Dumble | RV Leveler Pads 4-Pack. Flip down support jacks on campers are made with thin material that is prone to bending sideways under load. Thankfully, this RV leveling jack 4-pack can handle up to 3 Tons per jack and are designed to keep a camper steady while its wheels are touching the ground (not intended to raise). The entire jack screw is removable, and the pad itself is a heavy washer that spins and is attached to a pin that threads in to the jack screw. For additional support on the fully extended rod, add an additional nut (not included) to bottom of threaded rod and tighten to adjusted height.