ILCA Double Traveller Blocks - Harken

This is the traveller block used in the mainsheet system, which links the mainsheet and traveller. In contrast to the old style ILCA Traveller Blocks, this is a one piece block, which does not require any taping to hold in place. 

Ready to be used from purchase, simply thready your traveller line through the smaller of the two blocks, and you'll be on the water in no time.