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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
towers and more
If you have a G2/G2N or a G3/G3N HELIX that is not a MEGA SI or MEGA DI model
and it is three-hole punched for a binder or bulkhead mounting
With a maximum working load of 3000kg (or 6600lb)
Lifetime warranty from cracking or breaking
Allen 40mm Dynamic Block with Swivel Head Boat M15 towers and more40mm Dynamic Single Swivel Block. New for 2023. Made from high strength, lightweight glass loaded nylon and featuring Allens dynamic bearing technology for a high performance block suitable for keelboats and dinghies. 40mm dynamic blocks are perfect for use on main, jib and spinnaker sheets on dinghies and keelboat control lines. Bearings Dynamic blocks feature our patented bearing system which uses twin rows of stainless steel ball bearings running