Fear of Water Leakage? NO NO ease of use? to tighten?please rest assured to drink!

Students? tourism and other portable mini stainless steel telescopic cup convenient. Fashion is clean and sanitaryportable!

Characteristic.

1? imports of stainless steel. Compared with plasticexpansion Cup before? no pollution. Smooth surface?stainless steel cup is very small.

2? portable. A key hanging ring? can carry.