Choose the A2020P for a lightweight, cost-effective pulley. Use plain bearing blocks for low-friction systems or take-up systems. For the best performance, consider the Dynamic block range. This plain bearing block is made of recycled plastics and features an acetal sheave spinning on a central axle. The bearing has a long lifespan and requires minimal maintenance. Secure the block with an Ultra-Strap, a durable and rope-friendly stainless steel strap. Use the becket in the middle of the block as a tying off point.