The Chuggington Deluxe 7 in one track pack is compatible with the Chuggington Wooden Railway as well as Thomas Wooden Railway. This 34 piece set includes the following: 17 pieces of curved track ( 3.5 and 6.5 curved track), 12 pieces of straight track, 2 pieces of switch track, 2 pieces of ascending track, and one tunnel riser. Recommended for ages 3 years and up.