I bought these because the reviews were so good. I haven’t had the same luck with them as the other reviewers. These wicks put off so much smoke when lit and then after I blow them out. I have cut the wicks before each use and trimmed before lighting it. I have set my smoke alarm off, not once, not twice,but THREE TIMES I HAVE SET THE FIRE ALARM OFF. Needless to say I won’t be buying them again as I cannot well these to customers.