Go green...Green Market! Our eco-friendly Green Market Training Leads are made with bamboo, one of the world's most renewable resources. They offer longer lengths for greater reach and flexibility! Great for training purposes, as well as safely playing fetch in the yard, at the beach, and more. Some popular uses for Training Leads include: to teach your dog to come when called or recalled, to stay in view or out-of-sight, to stay within a certain distance of you, to provide more control while your dog is free-running, or to train a reactive dog that has a tendency to bolt.