Duracell KeyStart Black Plastic Head Automotive Single Sided Transponder Replacement Key for ToyotaBrought to you by Duracell is this transponder key that will be of great use to you. The car key replacement contains a computer chip in the head of the key programmed to the vehicle's security system. Duracell replacement key is first electronically programmed and then cut on a standard key cutting machine. This car key with chips is programmed with the matching code to operate the vehicle. The head of this double sided key is made of plastic. The