The glass bottles are beautiful and practical + unbreakable, they are with me always in use, even in the car - it comes after use in the dishwasher. BUT: the cover! Compared with the bottle itself and the Penguin is a lousy quality - leaky, expensive, short-lived and believe it or not: Not Available! The idea with the champagne corks (cheap plastic, but cheap and available) I will probably check times. , ,