Materials: 100% Temporary Hair Color Pastel Chalk,non-toxic. Color: 12 Colours/box. (one box included 12pcs as the pictures shown above) SIZE£º5.8X0.8cm Notice: the chalk maybe a little crashed during the shipping for chalk stick shape but still be usable, please consider this before buying, thank you! Easy to Use and temporary: 1.) Section off the amount of hair you want to color. 2.) Spray the section of hair so its damp. 3.) Apply chalk to the desired color more chalk the brighter the color 4.) Let air Dry this is very important to allow to air dry 5.) Flat Iron the hair to heat seal the color in. This chalk is non-toxic and will stay in the hair for 1-2 washes depending on your hair color. Package included : 1 X Colors chalk(12 Colours one box)