The Ronstan Low Friction Ring is designed for optimal performance in various sailing applications. With an 11mm hole, this ring allows for smooth and efficient line management, reducing friction and wear. Crafted from durable materials, it ensures longevity and reliability even in the harshest marine environments. Its lightweight design minimizes added weight to your rigging while maintaining strength. Ideal for use in blocks, sail controls, and other rigging setups, the RF8090-11 is a must-have for sailors looking to enhance their gear's efficiency and performance. Upgrade your sailing experience with this essential accessory!