Keyecu Smart Card Remote Key Shell Case Fob for MAZDA 5 6 CX-7 CX-9 RX8 Miata 3+1 Button A perfect replacement for a key with broken buttons, flip mechanism, key ring holder snapping off, or worn key blade You can literally put your circuit board to new case, get the key cut to your car's profile NO interior (remote / electronics / transponder chips / battery) unit inside This is an aftermarket replacement key case Please make sure your key is the same with the picture shows before placing order