This is the block to use onthe 420, FJ and V15 for the Jib halyard at the hounds of your mast. 25 mm Max Wire 3 mm Lightweight High working load Ferrule Top Removable Sheave Flared Cheeks to Minimize Chafing RF468Regular price: $25.00Sale price: $19.99 We list our current available inventory in our shopping cart. WE SHIP WORLDWIDE! 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.You may email us for a shipping cost estimate. Send us email intensitysails(at sign)mac.com