This BPA-free reusable double wall tumbler is made of plastic. It features a matching color rigid straw that is included. Each straw includes a plastic stopper to keep it in place. Designed for use with cold and room-temperature beverages only. Top rack is dishwasher safe but not microwave safe. Hand wash recommended for imprinted product. Fits most auto cup holders. It's recyclable under symbol #5.  5.75" H x 3.75" Diameter