The Road Popper is a bike-mounted bottle opener that we developed for our own use and decided afterward to share. We designed it to fasten discreetly to the rails on the underside of the saddle to help keep your bike looking crisp. So far, it's worked on all the bottle caps we've tried it on. Material options are bronze infused stainless steel. Finish options are plain (on the right in the photograph), matte gold, glossy gold, matte antique bronze, and glossy antique bronze. The Road Popper is not intended for alcoholic beverages. Chromoly does not condone cycling while under the influence of alcohol.