I bought a batch of cups in a street, and the quality is good. The price exceeds 1.20. Golden frog's. The heat preservation effect is absolutely ok.

Want to buy a good insulation effect, I once bought a Tiger brand insulation cup for our leader. Boiling water, pour it in After 48 hours, the temperature is still over 70 degrees, and we actually tested it.

The price is slightly higher, 500ml, 790! Yuanda is on the sixth floor.