Children can identify magnetic and non-magnetic materials on one side of this lab. The opposite side of the lab the children can test their skills by guiding a steel ball through a maze. Magnet and materials included. The unit is 19.5" wide x 12" deep x 2.5" high. Part of the complete Science Lab System. 20" wide x 12" deep. Drop shipped from the manufacturer; allow up to 3 weeks for delivery.