I didn't want to buy that; It's a bit more expensive than some of the others and almost overcrowded (did I REALLY have to buy another pair of needle nose pliers?). I ended up biting because it seemed to promise a stronger solution to the studs in my tractor tires; I felt like the thin strings in some cheap kits wouldn't fill the holes I poke. Received, used a few days and was very satisfied; The process was easy, the heavy string was soothing (and worked in a big thorn hole) and I think having everything in one box was kind of a plus - I haven't had to go anywhere with a pointy nose yet. Some things, like a knife, aren't very impressive, but they're functional. It is therefore more expensive than lighter or less complete options, but cheaper, quicker and more convenient than repairing a single commercial tractor tire. Before use, make sure the set screws on the handles are tight; Don't play Superman and take them off, but make sure they're a snug fit or you could pull on the reamer and end up with a handle in your hand.