Glass Bottles: Our swing top bottles are made of transparent glass so you can see what's inside the bottle.The glass bottles are made of high-quality glass, It’s hard wearing. Wide Uses: Glass bottle 500ml, Ideal for storing oil, vinegar, wine, beer, syrups, beverages, fermentation, vanilla extract and suitable for home brewing kombucha. Glass Bottles With Stoppers:Swing top lid is an easy and reliable capping option ,they give a good tight fit on the seal once they're snapped shut. Easy to remove for cleaning, and simple to reattach for reusing. Safely Packaging: Glass bottles with lids, each set is safely packaged in bubble wrap sleeves to prevent breakage while shipping. After repeated shaking tests, it is still intact. After-Sales Service: We adhere to the attitude of quality first. If there is any problem about the usage of product or if product is damaged, please contact us, we'll solve your problem as quickly as possible.