If you want to be prepared in case you lose the cooling unit for your Crafty Vaporizer, this is the product you need. The cooling unit makes your vapors more refreshing, more fragrant, and longer lasting. A cooling unit also extends the lifetime of your vaporizers, as well as the oils and liquids, making it a must for those who enjoy vaping. It works by cooling down the vapor to promote a pleasant taste and scent. If you want a better vapor fragrance as well as enhanced flavors, this cooling unit is a necessity.