ROCKY CREEK HELMETLOK CABLEUse this cable with the HELMETLOK (sold separately). Slide the cable through your jacket sleeve, hook the loops at the end of the cable onto the HELMETLOK (sold separately) and attach it to your bike. Alternatively, if your helmet does not have D rings, run the cable through your helmets chin piece, loop the ends through your HELMETLOK (sold separately) and lock it to your bike. Now your Jacket AND Helmet are locked to your bike. The cable will recoil