[silicone material] the collapsible drinking cup is made of reusable food grade silicone. FDA approved, Bpa free, non-toxic, odorless, eco-friendly and not easily deformed. [dimension information] collapsible travel cup capacity: 170ml, unfolded surface 75 * bottom 45 * height 70mm, height 20mm After folding, 80mm After folding, ultra slim and not bulky. [Easy to carry and clean] The folding cup is compact and space-saving, with a thoughtful hanging hole design for easy carrying. When folded, it can be placed in a handbag, backpack or luggage. The water cup with lid protects against dust and cleaning and is suitable for home and outdoors. [Heat & Cold Resistant] Shatterproof collapsible mug that can withstand extreme temperatures from -100°F to 480°F, making it safe to use in hot or frozen beverages. Suitable for dishwasher. Suitable for hot drinks such as cold drinks, tea, coffee, etc. [Convenient] The 5-piece random color silicone folding cup is especially suitable for camping, travel, hiking, business, office, party, walk, vacation home and any other occasion.