The 20mm Plain Bearing Double Block with Becket is a durable and versatile option for systems that require minimal friction. Consider upgrading to the Dynamic block range for optimal performance. Made from recycled plastics, this block features an acetal sheave that spins around a central axle, ensuring a long lifespan and low maintenance. A stainless steel Ultra-Strap keeps the block securely attached and rope-friendly. The becket on this block makes tying off easier and helps maintain a central load.