stainless steel vacuum flask, (1)capacity: 350ml, 500ml,750ml,1000ml (2)material:double wall stainless steel.

stainless steel vacuum flask.

1.Stainless steel vacuum insulation

2.Double wall stainless steel vacuum insulation for maximum temperatue retention,hot or cold more than 20 hours

3.Cool to the touch with hot liquids

4.Unbreakable stainless steel inner and outer

5.100% leakproof lid

6.Product surface can afford specific paint processing according to customer requirements 7.Customize logo is available

8.Can be used as gifts or for promotion

9.Convenient for traveling or outdoor activities

10.Made of  stainless steel for eco-friendly

11.Accept OEM

Vacuum flask