The cost performance of Contico Sports Cup is very high in the same cup, the materials are all food grade, authoritative testing and very safe. And many stars are using it. Mine is the same model in Tang Yixin. It is pink and easy to operate. You can suck water with one hand. The water cup does not leak, and it does not leak when placed horizontally or upside down. I usually put it in my bag and carry it with me at work. Highly recommended.