Discover the pinnacle of coaster design - a coaster that reliably stays in place on top of your glass, not beneath it. This innovative creation is ideal for safeguarding your beer when you're taking a break to make space for more. It forms a snug, air-tight seal on most pint glasses, ensuring your drink is covered and protected. Specifically engineered to fit perfectly with a 16oz Libby shaker glass, it provides a seal that's secure yet not pressurized, maintaining the integrity of your beverage while keeping it safe and sound.
