The Oxygen glass has a unique and inspired shape that ensures a good time. With its convexed design and seamlessly floating air bubble within the base, this glass set is certain to leave a lasting impression. 16 piece set includes: Eight 16 oz. cooler glasses Eight 10.75 oz. double old fashion glasses Glass Dishwasher safe Made in USA Luminarc collections are made out of glass, a naturally non-porous material that is 100% healthy and hygienic. Consumers can select from among different glass types, each offering specific advantages and benefits. Dishwasher safe.