No, I am not talking about your car, I am talking about getting some extra whips for your Vaporbrothers vaporizer or your Vapor Doc. Eventually the tubes will discolor, especially if you are not dilligent about cleaning them out every once in a while. The screens will dry out and become brittle as well. Picking up a couple of extra whips and a 10 pack of screens will make sure you are prepared for any situation. So, do yourself a favor and pickup a few whips today and everything will be alright.