The WELCOME ON BOARD water glass is highly stable thanks to its non-slip base. It is made of TRITAN™. This material is practically unbreakable and with its shine and transparency it will bring elegance to your table as well as remaining secure during meals.The collection of non-slip glasses includes the Wine Glass, Champagne Flute and Water and Beverage glasses, which all match the other accessories in non-slip tableware in high quality melamine with an unmistakable nautical style.- Instructions: This product is designed for use in normal conditions. Suitable for liquors and for warm beverages. Microwave safe.- Sustainability: BPA free Temperature-resistant. Can contain hot liquids at temperatures up to the boiling point. Can be used in cold temperatures and are freezer-safe Diswasher and microwave safe. Chemical resistant and withstands harsh cleaners Sparkling clarity and gloss. Impact-resistant and shatter-resistant. Stain and odor resistant.Specifications:- Features: Non Slip- Material: Tritan™ BPA Free- Type: Water- Design: With Decor- Capacity: 414ml- Composition: 100% Copolyester (T) - BPA FreeCare:- Dishwasher safe for top rack only max temperature is 65OC.