Extreme Max 3001.2086 Boat Lift Boss Installation Kit for Newmans, Hewitt, Ridgeline, Shoremaster, Pier Pleasure, Beach King, Daka and Dockrite Extreme Max Boat Lift Boss installation kits are required and must be used in conjunction with a 12 volt or 120 volt Extreme Max Boat Lift Boss System (Boat Lift Boss System Sold Separately) Each installation kit is designed specifically to fit your boat lift Installing the Extreme Max Boat Lift Boss system means you will never waste time cranking your boat up by hand again Installation Kit for: Newmans, Hewitt, Ridgeline, Shoremaster, Pier Pleasure, Beach King & Dockrite Boat Lifts Only simple hand tools required.