Designed for use with 'soft attach' blocks. A much thicker primary line to help avoid it getting trapped in the gooseneck. Made from 5mm SK78 Marlow D12 Dyneema with spliced loop at one end and an epoxy sealed end at the other for tying on the 'soft attach' block. This is the maximum size that can be easily tied onto a Harken 29mm T2 carbo block. Nominal 84cm length (for Standard MkI/Radial (ILCA6)/4.7 (ILCA4) rigs) and 94cm (for Standard MkII (ILCA7) rig).