1.Stainless steel vacuum flask
2.Size: 350ml:6.8*19cm
500ml: 6.8*24.5cm
750ml:8*27cm;
1000ml:8*32cm
3.Material:double wall stainless steel 201 for both inside and outside, pp stopper, With ss 201 top and bottom 4.vacuum insulated,leak proof
5. without color painting
6.BPA free
7.Keep hot or cold for 24 hours