Features: Preserve flavor of your favorite beverages with our Silicone Bottle Stoppers. The built in vacuums pump helps extend the freshs of your drinks. Versatile and convenient, our bottle stoppers fit both corks and screw top bottles. Keep your drinks freshs for longer periods. Easy to Use: Insert the wine bottle stopper into the bottle then push and pulls the poles until the air in the bottle is fully released and the poles would rebounds automatically. The Airtight seal prevents any kind of leaks or spill, making them perfect for picnicking, traveling, horizontal storage, entertaining, or personally use at home. Our bottle stoppers make the perfect present. Show your appreciation to friends, family, or colleague with this practical and durable accessory. Specifications: Material: Silicone+Acrylic Size: As Shown In The Picture Applicable Bottle Mouth：1.5-2cm/0.59x0.78inc Package Includes: 1x Bottle Stoppers note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.