Ou Premium Design- Thermal Espresso Cups-Assorted Colors Fun and Colorful Thermal Espresso Set Cups are designed to maintain hot beverage much longer Made with Recyclable ABS thermoplastic polymer. 100% Toxic Free- Each cup holds 2 oz. Microwave and dishwasher is not recommended. Size 5 x 7 x 2.5 inches Exclusive Design by Ou Premium Design- Manufactured in sustainable certified facility in Brazil