There is no limit to what children can create with the Hot Wheels® Track Builder sets. Encourage children to create and expand their own fantastical epic sets! This collection of 7 different sets is divided into 3 categories - BUILD, JUMPS, and BOOST. The Premium Curve Pack set is part of the BUILD category and helps children create unique tracks with 30 cm and 15 cm curves and straights! The Fold Up Track Pack set is also part of the BUILD category and helps children create unique tracks with 3.5-meter straights and 5 connectors, as well as additional basic track connectors. Another set in the BUILD category, the Split Track Pack set, features lanes that allow for incredible races with multiple cars, 3 adjustable track pieces, connectors, and 7 high-quality track pieces! The Long Jump Pack set includes a 4-speed launcher, connectors, a ramp, and a track for amazing JUMPS.