Short hair
I have short hair.
i have ... hair
'stiff hair'
Les cheveux (masc.) mean the hair in French. This is the plural form of "un cheveu" (One hair).
my hair is red x
I have wavy hair.
elle a les cheveux (colour) = she has (colour) hair
'My hair brush'
J'ai les cheveux courts
"elle a les cheveux courts"
J'ai eu les cheveux courts
j'ai les cheveux courts