Allen 40mm Dynamic Bolt Block

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.

Single block with hollow axle for tie on becket which will take up to 8mm line.
It has a bolt which holds the loop head on, meaning you can remove it, allowing you to fit the block around loops and lacing eyes that you can't remove.