With a adjust clip on the rope, you could tighten the reptile harness enough to be snug according to the shape of your reptiles,so it also suit for geckos,crested gecko,lizard,chameleon,baby iguana iguanas and other small animals like guinea pig, ferrets, hamster, rats which chest girths between 3''~7''. Comes with a carabiner, which you can attach to your belt ensuring safety and releg your hands while walking, convenient for you to take an adventure in the outside world and interact with your small pets. Closely fit your pet's body when tightening and fixing the rope by pressing the button on the cord. There are small/ medium/ large sizes of leather harness available that one set of harness can satisfy your various needs, suitable for pets with different sizes in the different growing periods; Suitable for bearded dragon, geckos, crested gecko, lizard, chameleon, baby iguana. Please measure your pet's chest girth before purchg according to the size chart to make sure our bearded dragon leash harness meet your need. Bearded Dragon Leash is made of soft leather harness and durable nylon rope. The super soft leather will not hurt lizard while crawling and easy to put on and take off.