Material: Made of high-quality environmentally friendly non-toxic PP material, not easy to break, durable and long service life. Size: The diameter of the telescopic cup is about 2.95 inches, the opening height is about 3.15 inches, and the closing height is about 1.38 inches. Uses: widely used in home and outdoor, camping, hiking, travel, sports events and concerts, very suitable for hot and cold drinks, portable space-saving cups, heat-resistant, reusable and flexible, can be placed in the dishwasher and The freezer is absolutely safe. Design: Beautifully designed and minimalist, these reusable telescopic cups with lid stand out because of one of their key functions: they can be folded in a bag when not in use. After fully unfolding, the cup is sturdy and durable. The reusable, foldable cup allows you to enjoy hot or cold drinks anytime, anywhere. Features: The sling design is easy to carry. The cup is fixed on your device with a convenient lanyard, which is convenient to carry, detachable, easy to clean, easy to hang, and comfortable to hold.