4Pack Black RV Level Bubble Self

[Color: White]
Works just fine

[Color: White]
These bubble levels are a fantastic addition to our RV setup! Installation was incredibly easy thanks to the strong self-adhesive backing, and having the option to mount them with screws makes them even more versatile.The bubbles are clear, easy to read, and make leveling our camper quick and accurate. No more guessing or making repeated adjustments—we can get perfectly level in just a few minutes, which makes camping much more comfortable.The compact size is another big plus. They fit neatly on the RV without being bulky or getting in the way, yet they're still easy to see from different angles. The build quality is excellent, and they've stayed securely in place through travel, changing weather, and regular use.Getting four levels in one pack is a great value and allows you to place them exactly where they're most useful. If you own an RV, trailer, camper, or caravan, these are an inexpensive upgrade that makes setup faster and easier.

[Color: White, Color: White]
I got the idea to actually check to see if these levels were giving the number of degrees off level. See the pics of using a digital protractor to measure the angle. Amazingly, they all were within a tenth of a degree of the markings from 0 to 7 degrees tilting both left and right. I reversed the protractor to measure the other half, essentially -7 to +7 degree range. I took a few pictures of several of the readings.Of the 4 levels, 3 of them actually read zero at level, referenced from the edge of the level or from the molded supports for the glass tube. 1 of the levels was about 0.2 degrees off from zero, but, it still read accurately across the range as long as you mount it so it says zero on a perfectly level camper. So all 4 are still perfectly usable.I was concerned how they would hold up to cold weather and if they could handle freezing, so I put them in the freezer at about 0 degrees F. All the levels still functioned, just slightly slower movement of the bubble, hardly a difference though.So, as long as you get the camper perfectly level to start with, then stick the levels on with a zero reading, I think these levels will give a very accurate result. I plan to stick them on then run a bead of RV clear sealant across the top to provide backup adhesive to the camper wall and keep water from running behind it.The bubble has good contrast for easy reading. It is not big enough for me to see mounted on the front of the camper from the driver's seat. I will need a jumbo size to do that. I like to inch the camper back and forth to see if I can find that perfect level spot, often there is one. However, these levels are perfect for the sides or back to check while cranking the jack or stabilizers.I had someone tell me the numbers 1 to 7 told you how many inches needed added under the wheels. Not exactly true. It is degrees, so the trigonometry gives the following results. It varies depending on the width of the camper and really figure probably by the distance between the wheels. So, here are a few widths...5 feet between tires is 1 1/16 inch (1.05") per degree6 feet between tires is 1 1/4 inch (1.26") per degree7 feet between tires is 1 1/2 inch (1.47") per degree8 feet between tires is 1 11/16 (1.68") per degreeSo if you consider a 7 foot camper with ST215/75R14 tires that are 8.5" wide, the the inside tire to tire is 67" or 5.6 feet which calculates to 1.17" or a little more than 1 1/8" per degree. So for smaller campers, the 1 inch is a good start, but the big wide campers need a bit more.Happy leveling.

[Color: White]
Exactly what I needed. 2 ways to attach if wanted. Good price.

[Color: White, Color: White]
I picked up this 4 pack to help level our camper more precisely, since eyeballing it before was always a bit of a guessing game. Installation was super easy, the self adhesive backing stuck on immediately and hasn't budged since, even after several trips and some bumpy roads getting there.I placed one on the front, one on the side, and kept the extras as backups/spares in case I want to add one somewhere else down the line. The bubble is easy to read at a glance, even from a little distance, so I don't have to bend down or squint to check if we're level.Accuracy has been spot on so far, matching up with our other leveling tools we've used in the past. It's made setting up camp so much quicker since I can just glance at the bubble instead of pulling out bigger, bulkier leveling tools every time.The white color blends in nicely and doesn't look out of place mounted on the RV, staying pretty subtle without being an eyesore. Size wise, these are small and compact, so they don't take up much space or stick out awkwardly on the surface.Overall, this is such a simple but useful addition for anyone who tows a trailer or drives an RV/camper. Accurate, easy to install, and a great value getting four in a pack. Would definitely recommend for smoother, quicker leveling on every trip.

[Color: White]
For some reason many RVs do not come with these levels from the dealer. I suppose it is so the dealer can charge you an arm-and-a-leg to put them on. Hence getting them aftermarket. This set is pretty cheap and does exactly what they should do. I thought I only needed 2 but then realized having a second one on each side could come in handy so I ended up using 3. The gauge is very easy to read and the bubble is very responsive, thanks to the curved design. Comes with two-sided tape that stays put even in the rain. Just be sure your rig is perfectly level prior to installing these!