Smart Temperature Display 304 Stainless Steel Vacuum Flask Creative Business Cup For Male And Female Students Style:High-quality(Black)

Specification:1. Material: inner 304 outer 201 stainless steel2. Insulation performance: 12-24 hours3. Capacity: 500ml4. Style: boutique temperature measurement large screen temperature measurement5. Color: black pink white red gold6. Dimensions: diameter 6.5cm height 23cm7. Net weight: 273g8. Remarks: Including button battery (AG3)Features:1. Touch temperature heat preservation and moisture retention built-in smart chip2. The inner tank is made of 304 stainless steel safe and secure3. No need to charge light and easy to carry4. The bottom of the cup is covered with non-slip plastic to reduce wear