Sailboat Hardware 50 mm 2 Inch Aluminum Deck Organizer 3 Sheave 2421 Features: Suitable for medium sailboat Use high quality aviation aluminum, and special surface processing, double protection, inner for prevent corrosion of sea water, outer guarantee UV radiation, scratch prevention, and low friction coefficient High load, high strength The design of block increases the strength of shaft parts Static load block Specification: Brand: Blue Shark Part Number: 2421 3 sheave deck organizer Aluminum shell 316SS shaft Delrin balls Aluminum wheel Fixed on deck with 6mm screws Sheave: 2 inches, 50mm Length:7 inch, 236mm Width: 2 inches, 50mm Height: 1 1/8 inch, 29mm Weight: 13.6 oz, 385g Max Line: 5/8 inch, 16mm Maximum Working Load: 1200kg Breaking Load: 2100kg Destination custom duty is not included in the listing price; it is the customer's responsibility to pay for custom duty if any.