20mm Single Stand Up Dynamic Block.
 
The A2020 is our go-to low friction, fast rolling, small pulley. It’s lightweight and strong, making it ideal for dinghies and anything else that runs smaller diameter lines. 
Our Dynamic range is generally the best choice for applications that require constant sheave movement.
Stand Up – This block has been built around a spring and lacing eye. When installed the block will stand up from the pressure of the spring.
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.