The Ronstan Series 40 All Purpose Block is designed for versatility and performance on the water. This double block features a becket, allowing for easy attachment and efficient line handling. Constructed from high-strength materials, it ensures durability while remaining lightweight. The smooth ball-bearing sheaves provide minimal friction, enhancing your sailing experience. With a safe working load of 600 kg, it's perfect for various applications, from cruising to racing. Upgrade your rigging with the RF51210 and enjoy reliable performance in all conditions!