I've been removing ticks for years, and this tool is a very crude approach to tick removal.  I just found a tick on my dog-- first of the season-- and tried (for the first time) using this tick tool which I had bought several years ago.  It is a BLUNT object and I spent 15 minutes trying to remove a moderate-sized tick with it and finally gave up in frustration.  There are better devices on the market. Don't waste your money.