Features: Food Grade Silicone Set of 2 airtight bottle stopper. Simple shape, simple operation, convenient and practical, long-term preservation. This silicone cap suitable for a variety of bottle mouths, tapered design, close fit，prevents spills, stable and portable. This silicone cap helps preserve the wine's freshness, flavor and aroma. This silicone cap keep their beer bottles clean and sterile before bottling. Specifications: Material:Food-Grade Silicone and ABS Plastic Color:Blue,Green Size: Approx. 6.5x3.7 for cm/2.56x1.46 inches Package Includes: 1 Set Silicone Wine Stoppers(2 Pcs) note: 1.Please allow 0-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3.Other parts are not included. Thanks for your understanding.