The MX is a high resistance halyard shackle fully forged in 17/4 pH stainless steel to take on the high loads MX has been specifically designed for static load operations and can be used to replace the terminals on flying sail furlers (i.e halyard block) or as a 2:1 purchase for your mainsail Fully forged in high resistance stainless steel, the MX offers one of the best strength/weight ratios on the market Compared to standard blocks and for the same line diameter, the MX offers much higher working and breaking loads as well as optimized dimensions & weight Unique design, the MX can excellently distribute the stresses Its particular shape enables the MX to perfectly position the line to avoid undue & excessive wear on the line The MX requires no specific lashing knowledge. Its installation is as easy as installing a shackle, thanks to its Wichard self-locking pin Reliable and maintenance free The MX does not include any mechanical parts (i.e sheave) which can potentially break The MX can effectively replace the terminal of your flying sail furlers, especially the halyard block, by providing an outstanding strength/weight ratio Maximum rope size is 8mm It can be used to replace the halyard block on top swivel, to replace the lower terminal on spool (Snap shackle etc.) It can be used in place of a 2:1 purchase on a mainsail halyard making it easier to tension the halyard & hoist the mainsail MX6 Shackle Working Load: 2290lb. Color: Black