No spills and no mess. Pouring wine is such a chore! simply screw the glass into your favorite bottle. Aerate, pour and drink in one easy step. It makes drinking from the bottle classy… or just plain fun! because who wants those “looks of judgment”? Guzzle Buddy wine bottle glasses made from borosilicate glass and uses a 100% silicone sleeve that screws gently into most bottles to provide a perfect seal.