Yeah quite expensive. The Micro Pro Pill kit with like 4 plugs is a staggering $64 however it is very small and comes with various tools like a small blade to cut off the excess plug. Refills are $12-$15+ which again is insane since you are getting only 5 plugs at most, granted the whole system is easy and works insanely well plus I hope I am not running through plugs and two I am hoping these help stop prematurely replacing tires which are also very expensive.