This colorful, safe, and fun toy is a great way to keep young toddlers and older kids entertained. Very traditional Mexican Game and also known worldwide. It appears to have a never-ending cascade of blocks dropping down, so you can do several magic tricks and form multiple designs using this Jacob's Ladder. The wooden block measures approximately 3 x 2 inches. When fully extended, measures 18 inches long. Please supervise small children at all times.