Its fairly compact size makes it easy to throw in the glove box when you need it. So the "piercing tool" or whatever you want to call it is a bit small. So if you have weak muscles, it may be difficult to insert it into the tire if the puncture you are trying to fix is small (e.g. a nail or small screw). But to be honest, that goes for any other tool as well, so can't really blame the dynaplug for that (banging it with a hammer works well, by the way, as does wetting it to slide it in). The…