Ronstan Series 40 All Purpose Deck Organizer - 3 Sheave [RF41831]Series 40 All Purpose Deck Organizer 3 Sheave Features: Lightweight design with cheek cut outs for easy bearing maintenance Through hub mounting for maximum strength All purpose bearing system provides maximum static load capacity Mount with 5 x 6mm (1 4) fasteners, not supplied Length 164mm (6 15 32") Deck organizers are an effective means of deflecting halyards and other control lines to winches, stoppers and cleats. Sheaves are made from impact