From the Manufacturer:
Use colorful cords to trace pictures (or create your own) on a self-stick surface again and again! Thread a six-inch or 12-inch cord into the easy-grasp drawing tool, slide a picture under the window with a hook-and-loop surface, and trace to draw! Cords cling to the surface and all materials store in the take-along case, making it a take-anywhere mess-free activity! The set includes 39 colored cords, cord drawing tool, six double-sided pictures to trace, and a take-along storage case.