Material: This wine stopper is made of plastic and silicone, durable, sturdy, and fashionable. It will not be affected by the acidity and alkalinity of red wine, nor will it rust. Specification: mainly suitable for bottle necks with a diameter of 0.6-0.79 inches/15-20 millimeters. The size of the wine bottle cap is approximately 4.3 x 1.7 x 0.83 inches (11 x 4.3 x 2.1 centimeters). Each package contains 3 wine caps, which are sufficient for daily use. Sealing: The bottle cap has good sealing performance, which is very suitable for preventing air leakage and keeping wine, champagne, and other soft drinks cool. Easy to use: Easy to insert and remove from the bottle, just push the bottle cap into the bottleneck. bar, kitchen, and refrigerator supplies. Application: Smooth edges, suitable for various red wines, champagne, and wines to maintain their freshness. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia