1.Medius size, Stomach Circumference: Neck Girth 8-10 ,Chest Girth 10-11.5, Back ,Length 4,deal both for summer days and year-round.2.Durable mesh material, soft and comfortable to wear with padding. Never put any strain on your pets neck and are designed using soft material for your furry friends total comfort.3.Comfort harness to reducing tugging and pulling on your pets neck and keep.The leash was the perfect length to go on walks around the back yard and keep him within a comfortable distance. Its so fun and cute to take him on walks and let him root around4.The bunny jogging harness easy control and put on. First step: Unclip harness and lay on the floor; Place harness on your pets back; Then, Handle parallel with neckline ring at the back. Last step: Clip the Velcro under the neck and chest.5.This harness is suitable for for adult ferrets, rabbits, Small and medium sized cat ,kitten, bunny ,Guinea Pig Hamster Rats, 2 lb puppy and other very small pets.