ORLYOBABE Dog Harness and Leash for Small Medium Dogs no pull, Step-in Soft Double Mesh Padded, Adjustable and Reflective Vest Harness for Puppies Cats Package Includes:1*Vest Harness + 1*Nylon Leash How to use it? Step 1. Put the pet's front legs in the step-in harness. Step 2. Pull harness up and wrap around the chest, Secure the velcro and then insert the buckle. (at the first time, you may need to adjust the straps to fit.) Step 3. Fasten the dog leash hook on the double D-rings. Size chart: XS(Chest 10"-11.5", Max Weight 4 lbs) Leash length:5ft (150cm) Fits weighing within 4 lbs French Bulldog Puppy, Chihuahua, Home Cats S(Chest 11.5"-13.5",Max Weight 7 lbs) Leash length:5ft (150cm) Fits weighing within 7 lbs Maltese, Papillon, Yorkie, Bichon, Home Cats M(Chest 13.5"-15.5", Max Weight 10 lbs) Leash length:5ft (150cm) Fits weighing within 10 lbs Toy Poodle, Dachshund, Husky Puppy, Miniature Pinscher, Home Cats L(Chest 16"-18", Max Weight 16 lbs) Leash length:5ft (150cm) Fits weighing within 16 lbs Miniature Poodle, West Highland Terrier, Border Collie Puppy XL(Chest 18.5"-20.5", Max Weight 22 lbs) Leash length:5ft (150cm) Fits weighing within 22 lbs Bedlington Terrier, Fox Terrier, Miniature Schnauzer Tips: please measure your dog's chest girth and choose the most suitable size. If your pet's chest girth is between the two sizes, it is better to go up a larger size and adjust the strap than to purchase one that is too small.