It saves lives! If you don't have one of the kits, buy it NOW. I used some plugs in a big hole that got me to the tire shop otherwise I'd still be stuck trying to get the replacement out and put it on. You shouldn't have to, but I've used them in quad, truck and car tires and never gotten a regular patch on them. They don't have to be completely flat to insert them, I have several kits (insertion tools) and I can tell you that screwing by hand works much better than a hand tool.
ACDelco GM Original Equipment 10-9243 Dexron VI Full Synthetic Auto Transmission Fluid - 1 qt: Top-Quality Performance for Your Vehicle
12 Review
Gaming chair COUGAR Armor ONE, upholstery: imitation leather, color: black
34 Review
Convenient New Pig 57703 Universal Mat Plus Dispenser Combo Pack - The Perfect Absorbent Solution
12 Review
Liqui Moly 2001 Valve Clean
15 Review