1) Food-grade double layer SUS 2) Heat-transfer printing 3) New PP plastic lid, stopper and bottom Detailed Product Description • Stainless steel vacuum flask for kids, absolutely made with non-toxic material more health and nutritural • Stainless steel inner#304, outer#201 • It is convenient for kids to drinking due to a soft and comfortable straw • Non-slip design, bring in a safe, health life ...