Easy to Use - Simply insert the wine stoppers and press the button on top gently; pump out the air until you feel resistance. Wine Vacuum Stoppers - 100% vacuum seal prevents leakage, ensuring the wine tastes fresh. Safe Material - The outer material is ABS and the inner ring is crafted from food-grade silicone, making it safe and reliable. Black color complements other products in the series, providing an excellent solution. Cost-effective high quality. Strong vacuum capability: After 15 vacuum cycles, the pressure will not drop below -0.02Mpa. Excellent sealing performance: After sealing, pressure remains above -0.015Mpa. Includes a date marking function. Colour: Black Material: Plastic Package Contents: 6 wine stoppers Only the above package content is included; other products are not part of this offer. Note: Lighting and different displays may cause the color of the item in the picture to differ slightly from the actual product. The allowed measurement error is +/- 1-3cm.