Great Quality Materials: Suitable for bottle mouth inner diameter 1.8-2 cm and can be safely cleaned in the dishwasher. Space-Saver: Silicone red wine stopper is nonstick, flexible, lightweight, and easy to carry, convenient for storage and transport, soft and highly elastic. Widely Applied: Wine stoppers provide an airtight seal to extend and preserve open wine bottles, suitable for wine bottles, beer bottles, soy milk bottles, and vinegar bottles; great solution for keeping bottles closed. Easily Used: Silicone wine stoppers can be vertically inserted into the bottle mouth, rotated, and pressed until securely sealed; can be removed with a simple pull, reusable and easy to insert, ideal for red and white wine bottles. Great Gift Idea: Glass wine bottle stopper features a cute cactus design, suitable for personal use or as a gift for weddings, holidays, anniversaries, birthdays, or any wine enthusiast, designed to preserve leftover wine.