The CMI Trolley Lanyard makes ziplining a cinch. A rider should have two separate lanyards attached to the trolley for a safe and secure ride. This usually requires two separate lanyards which can be a headache. CMI's trolley lanyard solves that problem by using two sewn runners that are sewn together to provide the rider with both a main lanyard and backup lanyard in one compact unit. Using two different color webbing makes checking for lanyard wear easy.