These coils to boil water and food are great, especially for the type of traveling that I do...it is so easy to make coffee and tea at the hotel without having to incur in room service. The package comes with 3. I have used one for my nightly cup of tea and after about 6 days of use the thing is burnt out. I am disappointed but it could be one lemon amongst many so I am going to try the other one. In the meantime I am going to chat with O and ask to have one more delivered to me. Other than this, it is a great product that saves you money if you travel as much as I do.