Review on 🎯 Bullseye Spirit Level: Ø66mm Plastic Circular Level with Yellow Liquid - Accurate and Reliable by Jacob Seymour

I keep this in my glove box and use it to carefully level my campervan when using leveling jacks. I just place it on the floor of the RV and look at it while manipulating the jack panel to find "more level" than auto-leveling can achieve, creating a much more comfortable environment (no sloping floor, no sleeping on an angle). I have found that even a one degree incline can result in restless sleep at night. This level is nice and big so I can see it well at ground level while staying in the driver's seat (where I have to use the level jack controls). I find it much easier to use than the "T" levels that seem to be common in RV shops. Notable, and I'm sure it's obvious, but in my use case I didn't have it in the "X" orientation shown in the product images, but in the "+" orientation (because my camper, like most, paired socket control uses "front/right/rear/left" rather than separate sockets to avoid stressing one socket).