Thank goodness I have not had to use these but they are great thus far. Easy to hang on the wall where you want to keep them with easy use instructions. Also they are small and light enough for a child to use incase of an emergency, which is good to know if you have children being watched back home. We have them everywhere because they are pretty affordable as well ($25 on amazon). I highly recommend these for any kitchen or outdoor barbecue because you never know you’ll need one until you actually need it. Compared to others on the market, this one has to be my favorite.