7.5x11x3.5" deep box contains Mattel set issued in 1970. Consists of four 3" long die-cast cars w/matching collector's buttons all attached to insert. Cars are: red metallic Lotus Turbine, green metallic Brabham Repco F1, aqua metallic Shelby Turbine, blue metallic Indy Eagle. These feature "Exclusive Torsion-Bar Suspension/Low-Friction Wheel Bearings/Mag Wheels." Box has trace of aging under the shrink wrap including a few age spots but remains tightly, factory-sealed and is Exc. w/Mint contents. A desirable boxed set. Gary Keller Collection.