Stick it to the wall and let their imaginations roll! Create more Wall Coaster Ultimate Marble Run configurations with the Wall Coaster Add-On Kit. Pieces are made of lightweight ABS plastic and stick to the wall with reusable adhesive that peels off easily. Kids can use the kit on almost any surface. For ages 5 and up. Made in USA. Available Style: Super Loop. WARNING CHOKING HAZARD (1,5,6); Not for under 3 yrs.