[Wine Bottle Stoppers Keep Fresh] Wine preservation bottle stoppers help keep wine fresh and flavorful for up to 14 days. Made of silicone, these stoppers fit securely on various bottle types and can also be used with beer bottles. [Best Material for Wine Bottle Stoppers] Crafted from food-grade silicone, these wine bottle stoppers offer a reliable, airtight seal for all standard wine bottles. The durable rubber stopper features a simple, effective design that minimizes air exposure to preserve wine quality. [Application of Wine Bottle Stoppers] This wine stopper set is ideal for sealing red wine, white wine, olive oil, truffle oil, and other non-carbonated liquids. Not suitable for use with sparkling wines. [Convenient] These stoppers provide a leak-proof seal and are reusable. Easy to clean by hand. Note: Measurements are manually taken; please allow 1–3 cm variation. Color may vary slightly due to lighting and screen settings.