Thank you for viewing. This item was used by a child and is a used item stored by a non-professional. I would like to sell it to someone who understands this. Please refrain from purchasing if you are sensitive to such matters. All parts are included. Operation has been confirmed. Requires one AA alkaline battery. Please prepare separately. This is a set of vehicles and rails. You can play with it immediately by just preparing the batteries. This is the first limited edition with an increased number of speed change rails. This was one of my child's favorite toys. It was used with care. I think it's in good condition. The following is a quote from the HP: Product Information The super-speed Doctor Yellow is here! Even faster than high-speed! Operate the "speed change lever" to change the speed and running lane as you like! The outer track is the high-speed lane for the Shinkansen, and the inner track is the low-speed lane with a vehicle depot. The secret to speed change is the "speed change rail"! When passing the red rail, the speed changes to [fast], and when passing the green rail, the speed changes to [slow]. Become the commander of Doctor Yellow and enjoy playing the story of vehicle maintenance and high-speed inspection. An all-in-one set with vehicles and rails that you can play with right away! Package size: W410 x H310 x D80mm Batteries used: 1 AA alkaline battery (sold separately) Target age: 3 years old and up Manufacturer: Takara Tomy