Although a little expensive for something that is ultimately just germaniol essential oils, the fact that they are precision blended and presented in 10 carefully measured sachets is very useful come bee-fishing season. I've used lemongrass oil instead, with poorer results, and have purchased these for several years now as my go-to lure. (In 2021, 10 applications yeilded 5 swarms, which is a good return). On their own they acheive some strikes, but they are better used as a force multiplier. Used to enhance the scent trail of an old 40 litre brood box equivalent, that contains old comb and a hint of propolis, the potential for catching free bees is greatly enhanced.