510ML Stainless Steel Leakproof Insulated Thermal Travel Coffee Mug Cup Flask

Product Description:

Feature:

Made of double-layer 304 stainless steel, food-grade plastic cover. Keep warm/cold for 8-10 hours. Leakproof, BPA free.

Specifications: 

Capacity: 380ml, 510ml. 

Size: 380ml: 14.5 * 7cm, 510ml: 17 * 7cm 

Color: black, blue

The package includes: 1 x coffee mug.

For the first use, please pour 100 degrees of boiling water and leave it for 1 hour, then pour it out and you can use it.