Food grade silicone+PE Healthy Material: Foldable travel cup made of food grade silicone, with stainless steel cup ring and plastic cover. Easy to clean, odorless, stain free, durable, flexible, and reusable. Ultra thin foldable design and portability: Upgraded foldable design, saving space, folding only 0.59 inches (about 1.5 centimeters), perfect for carrying in pockets, wallets, backpacks, and suitcases without occupying any space, making it perfect for outdoor hiking, camping, travel, and sports activities. Excellent performance: -It can be hung on a bag that connects a hand rope and a portable hook. -Convenient to read the measurement dimensions inside the cup. -It is easier to hold and drink from the stainless steel edge of the cup. -The sealing cover prevents dust and dirt from entering. Size information: Capacity: 270 milliliters. Before folding, the top diameter is 3.74 inches, the bottom diameter is 1.77 inches, and the height is 3.35 inches. After folding, the height is only 0.59 inches (approximately 1.5 centimeters) and the temperature range is -40F to 480F. Small size and light weight, suitable for both home and outdoor use.Products from Chunchuan's store