Review on Leveling the Way: SILIVN Camper Leveler 2 Pack - Curved RV 🚐 Leveling Block with Straighteners, Handles, Grip Pads, Level, and Wheel Stops for Travel Trailers by Devon Leach

I like that the case makes it easy to store in the camper. At first I wasn't sure what the rubber mats are for, there were no instructions but as you can see the description here is very detailed and shows how it's done. I especially liked that they mention that it can be used at any height. There is nothing worse than driving to the top of a mountain and realizing that your level is not designed for such a height. First impressions are that they are well made and durable. I haven't tested them in the field yet, but I'll update if there are any issues.