Stainless Steel 30oz Navy Drink tumbler.   Available in several different colors and sizes.  TFP Logo Laser Etched on the Front and Tuned with True Frequency’s Proprietary Frequency Technology.  The Tuning process creates a structured water, a more Healthy water.  This tumbler allows for better hydration, and improved health and well being. You will also find it improves the taste of water, and improves the flavor of Coffee, Juice’s, Wine and other non carbonated drinks by reducing the acidity and balancing the ph.   May cause carbonated drinks to go flat.  Try one today you won’t be disappointed.