Allen 30mm Through Deck Block

To fully appreciate the Allen dynamic bearing range of blocks, take a closer look at the design, quality of materials and construction to fully understand the difference. From 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.