We purchased a replacement uncut key for our Ford Escape. The description of the product was that it could be cut to duplicate an existing key. It looked just like the key we already had from the dealership so we purchased it. When we took it to the Ford dealership to have it cut they warned us that programming it could deprogram the vehicle and require added expenditures but we opted to take the chance. Fortunately, we didn't even have to wonder if it would deprogram the vehicle because when the key was put in the machine to be cut by the laser cutting device (a requirement for those types of keys)... the key melted in the machine!
Don't buy anything from this company. When I called to request a refund I got a message machine telling me the voicemail box was at capacity and I'd need to call back later.