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A comb is an indispensable object in our daily life. However, the tangled hairs between the comb teeth make it difficult for us to clean the comb. The design adds a transmissible structure inside a conventional comb. Once the button on the handle is pushed, the comb teeth retract inwards, leaving the hairs on the surface and making it easier for us to clean the comb. Not only the operation is simple but also the tangled hairs can be easily removed. How convenient it is!