HIGH QUALITYThe foldable travel mugs made of food-grade silicone, stainless steel rim and plastic sealing lid, BPA Free, FDA Approved. Easy to clean, non-toxic, odorless, non-staining, durable, flexible reusable. PORTABLE PRACTICALUpdated collapsible design, space saving and only 1.5cm/0.59 after folding, fits well in your pocket, purse, backpack, suitcase and takes up no space, ideal for picnics, camping, road trip and outdoor hiking. EXCELLENT PERFORMANCEIt can be hung on the bag connected with the hand strap and portable hook. The tick mark inside of the cup is easy to read. Much easier to hold and drink from the stainless steel rim of the cup. Tight plastic sealing lid can prevents any dust and dirt to get in. PRODUCT SIZECapacity of 8.79oz(260ml). Before folding, the top diameter 9.5cm/3.74, bottom diameter 4.5cm/1.77, height 8.5cm/3.35. After folding, the height only 1.5cm/0.59.Allowable temperature range from -40F to 480F. PACKAGE CONTENTFOUR Cups in ONE Color : White T