Heres another cheap way to stop scraping the curb on an RV. Now if you have never pulled too close and scraped a curb or any cement object, great! But if once or twice, you edged too close and scraped a curb, heres a cheap way to beat it. The newer vehicles all have fancy new rubber type antennas, but most junkyards all have the older vehicles with old stainless antennas with small springs on the bottom. You can usually get 2 of these for $5.00 at a local junk yard, and mount one in the front and one in the rear, on an angle so they would work just like the metal "curb warning rods" of years ago. Local junk yard's vehicles with the old style antennas work great and they are cheap. Because they are thin and small, you don't really see them so they don't make the RV look ugly. If you pull too close to an object like a curb, you'll hear the metal sound before you ever scrape your tires. Also, when you attach the antenna rods down on the lower part of your RV to act as warnings when you get too close to a curb, if you find the rod is too long, you can cut it shorter with a wire cutter. It really saves tires from getting cut up. One time these "feelers" save you from gouging your tire on a unexpected curb, and you'll be glad you took the time to put these on your rig.