Ronstan trapeze rings are adjustable 20mm (3/4") ball bearing pulleys that accept up to 6mm (1/4") diameter line. Features a 316 stainless steel loop, ball bearings, nylon cheeks, and an acetal sheave. Availability: Usually ships the next business day. RF17Regular price: $35.00Sale price: $30.99 Due to the wide variety of the size and weight of our items we will charge the actual cost of shipping in a separate charge on all orders. Please email us for a shipping cost estimate. Shipments outside the USA may have add on fees and duties by your own government. Sailing can be green! See our recycle your old sail offer Send us email