But you do realize they are not really needed here in Florida.
I have been in lots of deep sugar sand and never got stuck in sand.
YouTube - T-Creek 11-24-07
Actually I think bridging materials are much more useful and needed.
I went and purchased, and now carry, some of these
RV Leveling Blocks - Camping World
And these I HAVE used a couple of times already. Once to get off a high center stuck. Where I put them under one wheel and was able to raise my FJC enough to get over a rock I was high centered on. And once for Corey to "cheat

:lol:" getting over a very steep, tall and nasty piece of limestone.
Plus, I would use them IF I did get stuck in mud or sand or something and I did not have any other one with me to pull me out.
And they are light, and come bundled in a small package.
Admittedly if used in mud or sand they might break but we will see.