Main Halyard and Bridle Ring (Zim) Zim Sailing $7.00 This is a 5mm x 25mm ring made from high quality stainless steel. It is commonly used as the Main Halyard ring on the Club 420 and FJ sailboats, as well as the bridle ring on Optimist sailboats... Qty in Cart: 0 Price: $7.00 Subtotal: