Material:100% food grade silicone material
Foldable size:8.5x3cm/3.3×1.2inch, unfold size:8.5x9cm/3.3×3.5inch
Temperature rated: -30℃ to 220℃
1. Collapsible design, space saving, lightweight, great for outdoor carrying,small enough to carry in your purse or to carry in your pocket.
2. Comes with lid and wrist strap, stainless steel rim it makes the cup much easier to hold and drink, can keep water from spilling.
NOTE: first-time use,you can use diluent liquid detergent to wash it, then put in pot, add water to boiling,about 6~7 minutes,to disinfection and eliminate peculiar smell