These Faber-Castell Junior Twistable Crayons are large in size and have a triangular shape making them ideal for use by young hands. They are easy to use, simply twist the top to wind the crayon in or out. The colours can easily be washed from most surfaces using soap and water so you don't have to worry about leaving a mess behind. The colours are highly pigmented and rich for bright colour laydown. Simply twist the top of the crayon to wind the colour in or out. They have been packaged in a handy wallet that can be reused. These crayons are washable from most surfaces using soap and water. It is recommended for ages 3-6, but is suitable for all ages. There are 12 crayons in this pack, in assorted colours.