Laser Vang Line made from Evolution Race 78 which has a high performance Dyneema® SK78 12 strand coated core that is high strength, low stretch and low creep. It has a hard wearing HT braided Polyester cover and is smooth, easy to splice and has low friction while running through blocks.  The secondary line is the part of your control system which you are handling.  - High Strength - Low Stretch  - Suitable for all Laser Rigs - 4mm Diameter