Lewmar Synchro Footblocks feature alloy cheeks, fixing isolators, and a moulded base plate to prevent sealant ingress into the sheave.Thejamming footblockvariant is intended for light hand loads only and incorporates a clever two-step jammer action that keeps the lever close to the blocks side, maintaining a compact profile and reliable grip.FeaturesStandard and jammer options can be double-stackedTwo-step jammer action keeps the lever close to the side of the blockOptimised jammer shape holds the line central on the sheaveTough alloy cheeksSynchro sheave loads match the same-sized block.Twin fixings with insertsWide head for a solid base, the block will not roll on the deckMoulded base plate with a recess to hold sealant around the fixingScrews prevent ingress onto the bearing and sheaveSpecifications and DiagramPart number: 29927261Sheave Diameter: 72mmWorking Load: 1200kg (2645lb)Weight: 229g (8.10oz)Product Type: HardwareBoat Type: SailBlock Type: Foot blocksSheave Diameter: 72mmBoat Length: 31-50ft