Talk about concepts fast-slow and in-out as you watch the balls zoom down the tracks. Your youngest children will love watching the balls appear and disappear while playing peek-a-boo the whole time. A bell chimes the end of the trip. Durable child safe paint finish and solid, wood construction are hallmarks of Hape toys. Hape's toys stimulate children through every stage of development and help nurture and develop their natural abilities. All Hape products sold in North America meet or exceed all applicable safety standards. For ages 2 years old and up.