Sports Water Bottles by Semetor. Details:Why are you choose them? Health Materials: The collapsible travelcup made of food grades silicone, no small, non-stick and keep your health. Space Saving: with the collapsible design,never take up your space. Inside Measuring Design: Easy to read withthe measuring inside of the cup. PE Dust Lid: The tight and snugly fittinglids can prevent any dust and dist from the air. Portable Hook and Connective Hand Rope:Combination of both can string the cup and dust cover together to preventaccidental drop. Stainless Steel Cup Rim: The stainlesssteel rim at the top is strong and maintains the integrity of the collapsiblecup, make the cup much easier to hold and drink. Easy to Clean: With the inner wall adoptssmooth design, not easy to be sticky and just wash it under the runningwater(dishwasher available) The Detail Size Information: Capacity:17 oz (500 ml ) Bottle height:7.08 ins (18cm) Folded thickness: 1.