OX BLOX Trailer Jack Block - 10,000 lb. Capacity RV Jack Blocks - Made in USA - 100% Recycled Plastic Heavy Duty - Super Strong and Durable - Camper, Trailer & RV Essentials

These are simple, but they're well made, heavy duty, and they do the job. I'd recommend them.

These things are incredible!! Originally purchased more than a year and a half ago to hold a HUGE destination trailer. These things show ZERO wear and seem as though they're virtually indestructible to the elements. Despite needing 5 for my setup it provides unparalleled stability and makes the unit feel as solid as the ground it sits upon. Worth EVERY penny!! Couldn't be more proud that this level of superiority is MADE IN THE USA!!

a bit on the heavy side but very strong, and it looks better than the orange bucket alternative

After about 1.5 months of constant use traveling this summer, we've found this jack block to be of excellent quality. It's sturdy and so far durable. We use it with our 7,000# travel trailer and it's never shifted or cracked on us. Bought another one for our 20' utility trailer. It is high enough to help lift the tongue off of the ball of a relatively high pickup, where shorter jack blocks did not suffice for us. Bonus points for being made of recycled materials. It has an ever so slightly rubber, flexible quality to the otherwise rock-solid construction. Seems stronger than the clinky plastic ones. I'm considering getting 4 more to use on our corner stabilizers, kinda pricey though.

Great purchase. Keeps front from sliding. Very substantial and stable, but still a reasonable weight. Much better than my old method of using lumber or leveling blocks. Wish I would have bought this years ago.

These blocks are fantastic, with one caveat. I have an 1100 lb slide in pickup camper which I store on a settled, stable gravel driveway. I have stored the camper jacks directlly on the gravel many times before, using just the camper jacks with their 8-inch metal bases, and pieces of wood decking boards under the bases on the gravel. The first time I placed the same rig on these new blocks, the whole setup was also very stable. I even used a level to make sure the rig and blocks were level. After about 6 hours on a very sunny day, with temperatures about 95 degrees F, I noticed the front camper jack metal base plates had moved slightly forward on the forward BLOX - about 1/2 to 3/4 of an inch. The rear jacks were stable, and not in the same direct sunlight. So what? My sense is the top surfaces of the front blocks got a little "greasy" in the sun. And an almost invisible, slight forward weight shift onto the front jacks caused this slow sliding motion. Again. This was never a problem, and the blocks work great. But I would pay close attention to using these on any gravel placement.

These are very thick and sturdy. Stack well. If you’re using them on a fifth wheel with a round platform on the end of the leveler, you need to take that off and just use the pole itself. I wish it would accommodate the round platform at the end of the leveler instead of having to take that off

Block works perfectly!!