thermos flask not easy broken non-toxic wonderful design thermos flaskFashional vacuum cup, vacuum bottle, sports bottle, vacuum thermos, stainless steel bottle, drinking bottleFeature: 1、Material: PP or PS or stainless steel or glass or ceramics. Eco-friendly, washable and easy to clean. Unbreakable polycarbonate material, extremely strong material, safe for transport, storage, dishwasher safe.2 ...