No, I didn't just accidentally put a hole in myself
, just bringing up the topic. Have had one in my car's first aid kit a long time, now added one for my pocket or (ugh, it's crowded) belt.
Buy one with the windlass thingy to tighten it, not some kind of glorified surgical tubing cheapy. (Not getting too technical here am I?)
And if you are new to them, take it outta the plastic, untangle it, read the instructions, and actually try it out a time or two. It's not rocket surgery.