Feature:

Brand new
Material: Stainless
Insulation properties: About 6 hours
Size: 76.2*221mm
Weight: About 450g
Step1: The first cup of (hot water) : pour boiling water to 100 degrees Celsius, tightening the lid, shake up and down about unscrewed the lid after 1 minute, cup boiling water was rapidly cooled to drinkable water.
Step2:Second cup (cold water) : it can be cold water pour that tightening the lid, also about 1 minutes after shaking up and down again unscrewed the lid and the cup was cold water will quickly become can be immediately drinking, 55 degrees of warm water.
Step 3:Third cup (hot water) : if after the first cup of water to drink, also want to inject into the cup, 100 degrees celsius boiled water, middle interval about 1 hour, or cooling effect is not so obvious.

 

55°C ≈ 131°F

This 55 degrees cup is a fast cooling cup.
According the physical cooling principle, when you pour 100°C hot water into the cup, tighten the cup lid, shake the bottle up
and down for about 1 minute, the temperature of the water will drop down to 55°C, when you put cold water into this cup, shake it for 1 minute, then the temperature will be 55 degrees, it is very convenient to carry it whenever you go out school, travel out, go to work.

You can also use this cup to drink coffee,perfect temperature for drinking water.

You can send it to you friend as a super gift.