Allen 20mm Dynamic Block On Saddle And Spring

Single block with hollow axle for tie on becket, supplied with a lacing eye (A4388) and a spring to allow the block to stand up off the deck.
Lacing eye hole centres 27mm
Block will take up to 6mm rope but becket only 4mm

To fully appreciate the difference of the Allen dynamic bearing range of blocks, take a closer look at the design, quality of materials and construction to fully appreciate the difference. From the patented high strength 316 stainless steel line friendly ultra strap, to the soft contours of the sheave and cheeks moulded from advanced engineering polymers, patented dynamic bearing technology featuring twin rows of 316 stainless steel ball bearings all held together with a meticulously designed 316 stainless steel jacket, Allen blocks claim to be the strongest and best available on the market.