... *12*7cm.2.Material: Stainless steel ring with foldable plastic water bottle; toxin-free; Environmentally safe.BPA Free.3.Do not fill ... where you go.5. Used as: big range of application, sports, hospital , home, office , hotels , parties as much as you can ... : as customer's requirement.7. Certification: SGS, FDA, ISO. Foldable Water Bottle (FDA, SGS, CE standard, PBA free)