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 a free 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).