8 BRAND NEW AUTO WORLD. 4 GEAR CHASSIS ULTRA G CHASSIS. Eight Brand new Auto World 4 Gear Ultra G Chassis. They have Black Rims with Good Year rear Tires. The Bottom have a Dot Neodymium Magnet for Better Traction. Put one of these under your Favorite Auto World 4 Gear Body. All items are always packed with care in peanuts and bubble wrap. You can mix and match brands. Please message me with any questions.