Great Qualit MaterialsApplicable bottle mouth inner diameter 1.8-2 cm and can be safely cleaned in the dishwasher. Space-saverSilicone Red Wine Stopper is nonstick, flexible, light, and simple to carry, convenient to store and transport, soft and highly elastic. Widely AppliedCactus Wine Stoppers are providing an airtight seal to extend and preserve open wine bottles, applicable to wine bottles, beer bottles, soybean milk bottles, and vinegar bottles, great solutions for keeping wine bottles closed. Easily UsedSilicone Wine Stoppers can be vertically inserted into the mouth of the bottle, rotated, and pressed until it is tightly plugged, and can be removed with simple pull, reusable and easily inserted, ideal for bottled red and white wines. Great Gift IdeasCactus Glass Wine Bottle Stopper features a cute cactus shape, suitable for personal use or as a gift for weddings, festivals, anniversaries, birthdays, or any wine lovers, designed for preserving the remaining half of your wine.