<p><b>colour:</b></p><p>Blue, orange, purple, black</p><p><b>material:</b></p><p>Silicone and stainless steel</p><p><b>weight:</b></p><p>3.2 oz</p><p>Instructions:</p><p>Just insert it into the mouth of the bottle to seal it.</p><p>The convenient design and tightness allow you to store the bottle in the refrigerator without worrying about spilling.</p><p>It can slow down the oxidation process of wine after opening, prolong the service life of wine, and let you enjoy the fun of wine.</p><p>Another benefit is that the silicone plugs are tasteless, so they can be reused once the wine, beer or oil is consumed.</p><p><b>Note:</b> Champagne or carbonated drinks are not recommended. As the pressure increases, the plug will be forced to pop out. Do not shake the bottle vigorously before use. Place them on the ridge so that they don’t pop out suddenly.  </p>