Wine is made up of hundreds of compounds, which makes it an artwork and needs to tasted enjoyably. With aeration, usually the volatile and undesirable compounds will evaporate more quickly than the enjoyable, aromatic and flavorful ones. These cork wine bottle stoppers provide an air-tight seal to prolong and preserve opened bottles of wine to ensure a good taste. Natural Material These corks are made of natural cork with good quality, safe and reliable, do not contain harmful substances to the body; Made of food grade cork material, safe and durable, won't rust, crack or fade.The cork lids are made from cork material that is designed for long term use without easily bending or crumbling over time. Good Sealing Our cork stoppers come with larger particles, better flexibility and air tightness. With good pliability, can tightly seal the bottle, you can use them at ease.The tapered design of the cork can better fit the edge of the bottle. It fits different sizes of bottle mouth such as grape wine bottle, beer bottle, glass can, wish bottle, tube bottle and so on. These corks are very good manual DIY materials, which are very suitable for children and adults to do various creative DIY projects. It can be used to seal storage bottles, store spices and other foods, so that the shelf life of the food is longer. Description Wine is made up of hundreds of compounds, which makes it an artwork and needs to tasted enjoyably. With aeration, usually the volatile and undesirable compounds will evaporate more quickly than the enjoyable, aromatic and flavorful ones. These cork wine bottle stoppers provide an air-tight seal to prolong and preserve opened bottles of wine to ensure a good taste. Feature Material: cork. - Size S: about 2x1.7x2cm/0.8x0.7x0.8 inch.- Size M: about 2.2x1.7x3.5cm/0.9x0.7x1.4 inch. - Size L: about 3x2.5x3cm/1.2x1x1.2 inch. - Size XL: about 4.8x4.3x3cm/1.9x1.7x1.2 inch. - Size XXL: about6.3x5.7x2cm/2.5x2.2x0.8 inch. Package Including 25 x wine stopper