Tab size: 12″ x 4″. 12 volt BOLT trim tab kits (Controls sold separately). Balance loads, plane faster, increase efficiency and performance with Bennett BOLT Electric Trim Tab Systems, built to outlast any electric trim tab system on the market. Kits include: (2) Stainless steel trim planes (tabs) and mounting plates, (2) 12 volt fixed upper hinge actuators with 6′ wire harnesses and waterproof connectors (BEA2000), and (2) 20′ wire harnesses with waterproof connectors (BAW2020).