i had a slow leak in my van once, and took it to canadian tire cause they were the first place i seen. and they wanted 15 bucks to put in a plug, i went into the store, and purchased a plug kit for 19 bucks. and i can still fix 3 more tires. i have fixed 2 so far. with a savings of 11 bucks. and all you need to purchase is plugs after you have the reamer and plug installer. fixing a puncture is one of the easiest fixes a non mechanic can do.