CATCH SURF TRI FIN SET HONEYCOMB - MIXEDHigh performance Fibreglass Mixed colours TRI THRUSTER SET The only ultra high performance fins specifically designed and engineered for use with Catch Surf boards and our fin system. Available in four (4) rad colors to match your stick. Tri Thruster set includes three 4. 5" fins, Catch Surf canvas fin case and Catch Surf fin key (dual purpose tool; works to tighten top screws and tighten loosen fins screws). For use with 54 Special, Stump (TRI), JOB