Why only have black color, white color, or metal brush for the robot vacuum?

2021-01-28
Why only have black color, white color, or metal brush for the robot vacuum? Let's have some personality to our home appliances.


YH-212 : https://www.yht.com.tw/en/product/film/Light-Cement-Stone-YH-212.html

YH-283A : https://www.yht.com.tw/en/product/film/Black-Marble-YH-283A.html



Why only have black color, white color, or metal brush for the robot vacuum?