Formula-X has been developed for a new breed of ratchet downhaul systemsAVAILABLE DIAMETERS:3.8mmCONSTRUCTION:6 Plait Dyneema SK78APPLICATIONS:De-PowerWindsurfer DownhaulsWindsurfer OuthaulsWindsurfer Ratchet DownhaulsBENEFITS:Excellent cleat performanceFirm & roundFlexible product and easily handledGood abrasion resistanceHigh strengthLow elongationVery light weight