M size: hip Height: 16"--20.5", Hip width: 7.9"--12.2", weight: 26.4--55lbs
7 sizes available ,please choose correct size according to hip height & width firstly
New!!! hind-legs support link: https://www.amazon.com/dp/B01M9H8MMY
Front legs or full body support links: https://www.amazon.com/dp/B076ZRZ4NF
The dog wheelchair has a durable, light weight aluminum frame and adjustable harnesses to provide optimal comfort and mobility. **.Push button adjustability in height, length and width which enough for the dog.
4-Foot Lupine 1-Inch Wild West 4-Foot Dog Lead