What's in the box: 30 champagne flutes at $6 each. Size: up to 5 oz. Care Guide: Dishwasher and Microwave Safe Details: Available in tinted Crystal Clear Blue. All our glasses are handblown and unique. Due to the handmade nature of our products, each is a work of art; a one-of-a-kind piece with slight variations in color, texture and shape. Our glassware is hand blown in Colombia and made of recycled glass. Sustainability never looked so good.