Design, draw and color on learning mats or other non-porous surfaces then, wipe off and begin again! The color-coded crayon holders are easy to grasp and easy to slide the crayons up to draw and down to store. Details5 favorite colorsEasy-grip, color-coded crayon holdersSlide crayons up and down in protective holdersSpecially formulated to wipe off most non-porous surfaces3+ years