Multi Flask 7-in-1 Travel Beverage System by Precidio Design Use the 2 included Multi Flask bottles and easily swap parts to make 7 specialized bottles, without the clutter in your cupboard from 7 bottles. Its like the Swiss army of water bottles. 7 BOTTLES: 1) Hot Coffee Traveler, 2) Hot Tea Traveler (19oz, 12h hot), 3) Cold Thermal Bottle (24h cold with stainless vacuum bottle), 4) Protein Shaker/Smoothie Bottle with Shake Agitator, 5) 23 oz Water Bottle with soft spout (using Tritan bottle), 6) Infuser bottle, 7) Cold Brew Coffee Bottle with Brew Filter Basket Multi-Flask is BPA, BPS and Phthalate Free Replacement parts available if you ever need for your multiflask