Body width 12-20 (adjustable) Body length 25-40 (adjustable) Body height 19-30 (adjustable) Reference bust 24-40, suitable for pets weighing 4-9KG. Four-wheel walking assistance vehicle Push button adjustability in height, length and width which enough for the dog. Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Designed for disabled pets: available for pets with injured or disabled hind limbs and for pets with limited mobility due to age.It is hoped that with the help of the wheelchair they will be able to stay active and maintain a high quality of life. High Quality: This wheelchair is made of lightweight aluminum alloy, which is resistant to wear, dirt, rust, durable and easy to carry. After wearing this wheelchair, pets can easily walk with it. The dog wheelchair has a durable, light weight aluminum frame and adjustable harnesses to provide optimal comfort and mobility. Family: Pets are our family. Don't give up on them when they have a disability. A wheelchair will give them a second life. I wish your pet a speedy recovery.