Great for boats from 14'-25' long with a swim platform and/or ladder. Can be fitted to transoms with limited mounting space. Blades are electro-polished 12 gauge, 304 stainless steel. Fully submersible electric actuators have plug & play Deutsch connectors. Includes: (2) 12V actuators with 6' leads, (2) 20' actuator extension, (2) trim tab blades, stainless steel mounting hardware. Switch kit sold separately. Minimum transom height - 14.5".