16oz Glass Bottles with Swing Top

What can we say, it's a durable Grolsch Bottle, made of glass. Fantastic. Rust proof. Wont rust if you add salt or electrolytes to your bottle. No leaching Plastic: Premium Grolsch Bottles wont leach microplastics or endocrine disruptors. Multi-purpose: beer, wine, whiskey, liquor and alcohol as well as flavored water, cider, kefir, kombucha tea, vinegar, oil and homemade soda Standard Size Bottles: Available in 330ml/11oz., 500ml/16.9oz, and 1000ml/33.8oz. Swing Top Cap: Place the swing top cap on top of the bottle for an airtight seal that keeps your brew fresh and safely securedKelly's Thoughts: I use these because I add salt to my water. If you use stainless steel it will rust. They great, and they actually quite strong. Plus no one uses them, so they tend to get compliments.