Ideal for a model that requires 2 batteries and isolation of heavy loads from the receiver such as ailerons, elevator, rudder, flaps. Unit was purchased for a model that has not been completed. Perfect working order and includes low battery LEDs with holders, switch with mounting screws, patch leads, instruction book and PowerBox sticker. All original packaging. Add 4% for PayPal. Postage box size is 23 x 17.4 x 8cm, weight approx 450gm.