Smart Vaccum Steel Flask

Style: Straight Cup

Liner material: 304 stainless steel

Shell material: 201 stainless steel

Insulation performance: 12-24 hours

Material: 304 inside and 201 outside

Style: modern and simple

Function: portable, heat preservation, customizable, drop-proof, UV sterilization

Color: white, black, blue

Capacity: 420ml,600ml