The ZL70 - 70' Zip Line is built with safety, durability and fun in mind, perfect for daredevils young and old.  Gets us all off of the couch!  Our unique, strong and easy-to-grip trolley has four pulleys; simply attach the cable between two trees or other supports, grab the trolley handles and you're on your way!  The best Zipline Fun of all! The ZL70 - 70' Zip Line is built with safety, durability and fun in mind, perfect for daredevils young and old.  Gets us all off of the couch!  Our unique, strong and easy-to-grip trolley has four pulleys; simply attach the cable between two trees or other supports, grab the trolley handles and you're on your