This wine bottle stopper is both beautiful and functional. Just because these stoppers are a lot less expensive than you are used to seeing does not mean that the quality suffers! Adapted to the caliber of 15 ~ 20mm flat rigid bottles, such as: wine, foreign bottles of the product is suitable for bottle stuffed in the mouth to prevent alcohol evaporation, scattered drain, better sealing performance can be sustained to maintain alcohol mellow, not taste. Material: Zinc alloy (chrome-plated) + Silicone Size: 11cm