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Getting your trailer stable doesn’t have to be a chore. The Weigh Safe Flap Jack unfolds and locks into place in just seconds, using built-in neodymium magnets that help each of the three pieces snap together without tools or fuss. Once open, it stands 8" tall and provides a steady base that keeps things from shifting while you move around or load up.
When you’re done for the day, the Flap Jack folds flat like a pancake so it won’t hog storage space. Folded up, it measures only 2" high, fitting easily into a gear bag or storage bin. The included zippered carry bag keeps all three pieces together, ready to grab for your next setup.
This block means business when it comes to strength. The durable, UV-resistant plastic design supports up to 6,000 lbs without flexing or cracking. It’s a solid base you can trust under your jacks, whether you’re leveling for the night or stabilizing during maintenance.
From paved pads to dirt pull-offs, stability matters. The Flap Jack’s flat surface area of 9-1/2" by 8-3/8" gives plenty of room for most jack feet to sit securely. It’s sturdy enough for long-term setups and can even be used on gravel or uneven surfaces with proper placement.
Designed with travel in mind, this block is lightweight and easy to carry thanks to its compact fold-flat build and included bag. It’s one less heavy piece of gear to wrestle with when you’re setting up at camp or packing up to head home.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
very nice
They were delivered promptly. They are easy to assemble and they are very solid. The included carrying case makes them easy to store and transport. The compact design is brilliant. I am very happy with this purchase.
They work great. No space used hardly when storing easy setup. Best jack block I’ve seen yet
Great product! I can use it right away. Works well on my trailer tongue!
We are amazed how compact and light this item is - especially when compared with our previous tongue block. It appears to be very well-constructed and sturdy, although we have not yet had the opportunity to test it with our travel trailer.
I have used this a handful of times. It seems very sturdy and like it should last a while. It is convenient being able to use it in both the collapsed position and the expanded position depending on location.
This is something that I was needing for a long time. I don’t have the space for the Anderson jack blocks and I had to carry wood blocks in the back of my truck for my trailer. Now I can store them in the trailer. They are very easy to set up and use.
Compact design that folds down small and comes with a convenient carrying bag. Extremely stable, with quick and easy setup and takedown. So much better than the stacking blocks. Highly recommended!
This is exactly what I needed. I love that it folds up when not in use for easy storage!
This product is a breakthrough for strength versus stowed size. Five stars if it was not exorbitantly overpriced. Shipping took forever as they use USPS. Time will tell for durability.
This folding jack block didn’t work for me. While it is good quality and well made, I found that the collapsing process of this ~ 5 lb block to be too cumbersome to both set up and put away. Managing three separate pieces with folding parts and specific fitment was simply too much hassle to outweigh the slightly smaller form factor when folded up (which was not that much smaller than the leveling blocks that I currently use). For me, simple is better when I’m setting up and taking down my rig.
I have not had to use this product but I did lend these blocks to a friend that was rving with us and they worked perfectly !
These folding RV stabilizers are great and fold up very compact for storage. Would highly recommend.
I was excited to try this, I saw someone with one at an RV park and they raved about it. It works great on level ground but when we used in on our driveway for the hitch jack it slipped down the driveway a couple inches. To be fair, we have some slope to our driveway but it's not what I'd call steep. We'll keep the Flap Jack for when we're on the road. It breaks down to a small footprint for stowing and it works well on level ground.
The stabilizing blocks works great.i highly recommend them.
This jack stand works exactly as advertised. It is sturdy, easy to use, lighter than blocks, compact, easy to stow, and very stable. I carried my old blocks of wood around in the back of my truck for a while until I realized how much better and more convenient this product was. Would definitely recommend and buy again.
I am using this stabilizer block constant use for many months in a row, no problems. Easy to fold away and store.
What a difference over the stackable stabilizing blocks. Easy set up, thinner than stackable of same height, sturdy and easy to slide in an out from under the stabilizer.
Just what I needed! Was looking for a block for our new trailer tngue as it is higher than our last trailer. I didn't mind the yellow ones I already have but have to use so many just on the tongue. What I like about the Weigh Safe is it is collapsible so takes a lot less space to store which is very convenient. Was suspect about how solid it would be but after first use I found it to be rock solid
Kos
6/22/2026
After a year of using the Weigh Safe collapsible block I love its convenience. When getting ready to move out of a campsite one of the last things I do is the trailer on the hitch. The Weigh Safe is so quick to remove, collapse, store and get me moving. The number one thing I like about it is its collapsed size without sacrificing strength.
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Ramon
7/1/2026
Outstanding. Not only are they thinner the holding case for four make for easier storage. In addition set up and use are a breeze.