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Free angle / Free angle

Free angle

Free angle is designed for solving the problem of drinking up.The opening part can be arbitrarily bent so that it looks like a soft neck. When you need to drink, as long as you view the mouth rightly without drinking up.

University

University of South China

University of South China
Hengyang, China

Ding Guoquan,
University of South China

Xin Ge,
University of South China

Ai Danqing,
University of South China