The Allen A2020P is an ideal choice for lightweight and cost-effective pulley applications. With its plain bearing construction, it is best used for take-up systems or those with no need for friction reduction. For maximum performance, we recommend using our Dynamic block range. Made from recycled plastics, this plain bearing block is durable and environmentally-friendly. Stand Up - This block features a spring and lacing eye, allowing it to stand up under pressure when installed. Plain Bearing - The acetal sheave rotates around the central axle, providing a long lifespan and low maintenance. Ultra-Strap - Featuring a stainless steel strap, this block is both sturdy and rope-friendly. Becket - The central hole can also serve as a tying off point.