Only available from Hammacher Schlemmer, this heated steering wheel cover reached the highest temperatures, creating a cozy surface for keeping hands warm during cold winter drives. Hammacher Schlemmer Institute analysts reviewed battery-powered heated covers and found this model consistently reached temperatures about 10° F warmer, and it could heat to a maximum of 114° F while lesser models topped out at only 103° F. Made from PVC leather, the warmest heated steering wheel cover also had the sleekest design, with wires that were imperceptible through the silicone exterior and undetectable beneath the hands while driving. It fits snugly around standard wheels 14 1/2" to 15 1/2" in diameter and provides four levels of heat. The battery has a convenient on/off switch, so the entire unit does not have to be disconnected when not in use. A full charge via the included AC adapter provides one hour of comfortable motoring. 14 3/4" Diam. x 2" D.