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Toothbrush with a sponge / Toothbrush with a sponge

Toothbrush with a sponge
Toothbrush with a sponge

As we all know, after brushing our tooth, there will always be remaining moisture in the bottom of the tooth cup. We can install a sponge in the bottom of the toothbrush, in order to absorb the moisture and ruled out moisture. So, the bottom of the tooth cup can will not bred ground for bacteria.

University

Nan Chang University

Nan Chang University
Nan Chang, China