*****1-8-21 UPDATE ***** They don't have a watertight seal. If I remove the headlights you can see the ice frozen in the caps of the two cables I used. Very disappointing and practically pointless to have and use when water gets in! The cable is not dry so this product does not fully do what it is supposed to do. They are amazing. They are very large compared to the ones I bought from the local store but I was able to fit 3 Christmas candles in one of them. A great idea. For me there is no more black ribbon. Now I feel better when it snows and the candles are covered with it, they are dry.