Harken's Flip-Flop low profile blocks are lightweight and can be used in many places on the boat for halyards and sheets. The Flip-Flop block features hard-lube anodized aluminum discs for strength and corrosion resistance. Flip-Flop blocks rotate around the line axis to keep the line close to the deck. Disc: Ø57 mm. Max line 10 mm. Width: 57 mm. Height: 73 mm. Length: 111 mm. Max. working load: 1,136 kg. Breaking strength 2,273 kg. Weight: 255 g. Screw spacing: Length: 93.6 mm. Width: 39.7 mm. ESP is a series of blocks that complement the other Harken series in design and function, but are simple in design and construction. The disc features Carbon Delrin balls that take the light load horizontally and laterally. At high static | loads are absorbed by the large stainless | center plain bearing. | ESP are ideal as mast foot blocks and are available in | many variants.
