The Extra long kit is designed for LONGBOARDS ,SUPs and KAYAKS will clear the larger rear fin boxes on all bigger craft suitable for 7’6 to 9’6 board STANDARD POLYESTER FLAT SURFBOARDS (EXCLUDING SOFTBOARDS or PLASTIC TYPE BOARDS). The ELECTRODES ARE SACRAFICIAL AND NEED TO BE REPLACED AS THEY BECOME CORODED please maintain with rinsing each surf and use appropriate cleaning products to maintain these electrodes !

WARINING this Product is only a housing and not the active Shark Deterrent Device !

it will need to be replaced periodically with long term use due to electrolysis