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When your trailer rocks every time someone moves inside, setup stops being relaxing. Each Flap Jack block spreads the load with a 9-1/2" × 8-3/8" surface area that keeps jacks steady on the ground. The 6,000-lb capacity per block gives you a solid, stable lift point so your setup feels firm and secure from the start.
Cranking stabilizers all the way down can get old fast, especially after a long drive. At 8" tall when deployed, these blocks take up that space so you don’t have to crank as far to reach the ground. It’s a simple way to save time while reducing stress on your jacks and stabilizers.
Storage space is always tight when you’re hauling gear. Each block collapses flat to just 2" tall, fitting neatly in its zippered carry bag. The folding design and magnetic connections make setup quick and teardown simple, so everything stows cleanly without loose parts rolling around.
Outdoor conditions can be tough on gear, but these blocks are built to last. The UV-resistant plastic construction supports up to 6,000 lbs per block without flexing and won’t rust or corrode over time. It’s dependable strength that keeps performing season after season.
Leveling a larger setup often takes support at more than one point. This set includes four Flap Jack blocks and two zippered carry bags, giving you flexible options for different stabilizer layouts while keeping everything organized between trips. Each block locks firmly into place when unfolded to stay steady under load.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
I am very satisfied , this is a great p roduct
They are well made.
Very Heavy duty. Assembly is easy. They stow away in their bag perfect to save space. Very pricey, but if you can swing it, worth it.
This is a great product! So much better than hauling around cement blocks. They’re easy to put together and fold up to store underneath the trailer.
Description was accurate. They seem well built and of good quality in materials and workmanship. I am excited to use these for a fall trip coming up should experience different conditions and know how well they will work. These are going to be used to stabilize a camper on and off the truck for stability while camped and if when we remove camper from truck.
So easy to use. Takes far less storage space than the blocks we use to carry. Very stable.
We have a heavy toy hauler
These weigh safe blocks are perfect to support out stabilizers
The space saving for storage is a big plus
Great item that takes little room in storage. They are quality built blocks that will last a long time. Easy to assemble/disassemble and pack away in the case.
Love the ease with which these are set up and ready to go. They snap together easily once you have the direction they go together. Memory takes over, and they are a breeze to work with. Storage is even better. These blocks break down as easily as they are to set up. The magnets are powerful. These eliminate the need for bulky wooden blocks of flimsy plastic LEGO pads. Highly recommend
Looks like a great design. Shipping was fast ! I appreciate the regular updates !
I love them their compact and look much better and easier then using 2"x6" blocks which I don't have to carry around any more they look more sanitary than using blocks.
Compact and holds the weight just as solid and the one piece molded units. Appreciate the extra storage space gained.
I love these. They are easy to clean. They are cleaner than the 4x6 wood blocks I was carrying and they are half the weight. They also pack up in smaller space, so I have more room in the cargo area. The magnetic connectors are very strong and hold it together very tightly. I felt like they were a little pricey before I bought them, but I don't regret the purchase at all.
The only little problem I have is that the carrying case handles are so short that it takes both hands to lift them out of the cargo bay. They should be long enough to overlap at top and lift out with one hand.
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Randy
6/12/2026
They work great they fold up nice and neat in their own carry case taking less room in my travel trailer storage compartment theyve worked out great anywhere Ive been especially in my driveway where I store my trailer at my house I dont need to carry around 14 2X12 blocks 4 2 foot and 10 1 foot anymore, I would advise anyone getting a set of them.