1) GT-72V50A front (B) (TFT automotive); 2) GT-72V50A rear (A) (TFT automotive); The front and rear controllers are different, please compare and choose accordingly. 1) Suitable for replacement of controller accessories for Kaabo Wolf King GT Pro electric scooter. The front and rear controllers are different, please compare and choose accordingly. 2) Suitable for replacement of damaged components, not applicable to other vehicle models. 3) Please carefully check the vehicle model parameters and specifications. 4) Recommend professionals to install and debug. Suitable for Kaabo Wolf King GT Pro Electric Scooter Dual Drive 72V 50A Sine Wave Controller Accessories (TFT Instrument for Vehicles)