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.Details:Includes assorted colors2.75" x 4" x 0.5" assembled12 packs (5 crayons per pack, 60 crayons total)Slide crayons up and down in protective holdersEasy-grip, color-coded crayon holdersSpecially formulated to wipe off most non-porous surfacesFor ages 3 and up