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手动计时牙刷 / A Non-electric toothbrush

手动计时牙刷
手动计时牙刷

a battery-free tooth-brush, by rotating the button at the bottom, trigger the coil, put the head of the tooth-brush in circling motion, at the same time, a timer will be powered up , after a certain amount of rotating, the head of the tooth-brush will stop spinning.

University

Chengdu university of technology

Chengdu university of technology
Chengdu, China

Design

Chengdu university of technology

Chengdu university of technology
Chengdu, China