It's important to be able to keep your baby safe and close to you. Use this fashionable, comfortable, leather harness that has adjustable cinch, safety clasps and 36" nylon lead. Then feel free to take your monkey with you on your next outing. We recommend that you start using the harness when it's young. Understand your baby will not like it at first. It will take lots of training at first, but it will be worth it to have your baby safe. Comes on 2 sizes so that it fits most marmosets & tamarins. Colors vary.