With the Hot Wheels Track Builder Unlimited Straight Track Set, fantastic tracks can be built or existing ones expanded. Each pack includes straight track pieces and four connectors to link them together. The colors can be varied with tracks in the original orange color, black with an orange stripe, or yellow with an orange stripe (each color sold separately). Kids aged 4 and up will love this official Hot Wheels set, whether they are just starting out or looking to expand their existing tracks. All items sold separately. Color and design may vary.