Sailboat Hardware 75 mm 3 Inch Aluminum Single Becket Block 2711 Features: Aluminum material with high strength,delicacy appearance, longer block life. Preservative treatment Delrins ball Stainless steel accessories. Use for: Mainsheet fine-tune Main/jib sheets Control lines Vangs Outhauls Specification: Brand : Blue Shark Part Number : 2711 Single becket block Head can be fixed at 0 or 90,or left free to swivel 360 Sheave: 3 inch, 75mm Weight: 18oz, 500g Max Line: 9/16 inch, 14mm Shackle: 5/16 inch,8mm Maximum Working Load: 1765lb,800kg Breaking Load: 6614lb,3000kg Destination custom duty is not included in the listing price; it is the customer's responsibility to pay for custom duty if any. Shipping by China Post Registered Air Mail with shipping tracking number provided. It will take about 2-3 weeks’ time to deliver to you after shipping out, some countries may take longer time to deliver. If you want faster delivery, please contact me for shipping upgrade.