This is a rather unusual addition to my collection. Its a 1962 Yonezawa electric Indianapolis tether race set. The 2 cars are each 10 inches long(one is the # 1 aj foyt 1961 1st place indy car the other is the red everfast indy car).the tower is 9 inches tall & holds batterys.1 ring toward the top is for 1 car the other ring turns for the 2nd car. each car is connected to its own ring on the tower by an electrical wire. There are 2 controllers with variable speed controls.they attach to the tower at the bottom. the red car has a metal prong coming up from the body so the wire attaching it to the tower wont get tangled with the white # 1 car as they race each other around the tower. This set is quite rare in this condition. They are usually rusted & missing parts. Its unique because you can control the speed of each car individually .everything is made of tin.