Space saving , fits well in your pocket, purse, backpack, suitcase and takes up no space, ideal for outdoor hiking, camping, travel, and sport events. Also perfect using in office as coffee cup.Collapsible travel cup Max 550ml volume capacity, withstands the temperature range is -58F – 392F. 3 adjustable sizes to meet everyone’s needs. Size: 3.5″ L x 4″ W