Allen'S 20mm dynamic blocks feature the patented Allen Dynamic bearing system which provides an unrivalled weight to performance. This is coupled with their high strength and rope friendly stainless steel ultra-strap; making them amongst the strongest and most reliable blocks on the market. The range is available with different types of accessories including lacing eyes, hooks, swivels and cleats. The range also features a central rivet that provides great options as a tie on becket.

Maximum performance from the smallest ball bearing block.