20mm Stand Up Single Dynamic Block.

Our Dynamic range is generally the best choice for applications that require constant sheave movement.

Bearings – Dynamic Blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides a superior load-carrying ability and longevity when compared to other bearing systems which run on a plastic rail. 

Ultra-Strap – Our patented Ultra-Strap is used in our 20, 30 & 40mm Dynamic blocks. The Ultra-Strap is unique when compared to other designs because of its coining process. This process strengthens the strap, making it more reliable and hard-wearing as well as making it much more rope friendly than other designs.

Becket – Our 20 & 30mm blocks offer a large central rivet which not only reduces the overall weight but also offers a rope friendly attachment, perfect as a tie-off point when being used in a cascade system.

Spring - The spring holds the block up whilst remaining soft enough to allow for articulation.

Ideal for spinnaker hoisting, centreboard moving and mast base applications. 

Length: 41mm
Line Dia: 2.5-6mm
Breaking Load: 520
Weight: 15.4gm