[Two lengths] 17.5cm/22cm, suitable for long hair or short hair, to meet your different needs. [Clean and hygienic] When using balayage highlighting board, you can avoid contact with hair dye. The hair dye board can be washed, can be reused, and is durable. [Protect the scalp] Round comb teeth will not hurt the scalp and prevent the hair dye cream from directly contacting the hair roots. [Easy to operate] Just pull the hair you want to color over the board to get a firm foundation to paint on, straighten a section of hair for applying color or bleach. [Evenly dyed hair] Using the hair color board is a professional hair dyeing tool, which can make the dye more even and avoid color overlap, which is very suitable for fine highlighting.