Adjustable Dog Lift Harness for Back Legs Pet Support Sling Help Weak Legs Stand Up Pet Dogs Aid Assist ToolProduct size: S M L Thigh circumference S: 25cm 35cm M: 35cm 45cm L: 42cm 52cm Transition: 1cm=10mm=0. 39inch Features: 1. Suitable for elderly dogs with hind leg weakness and disability. 2. Can support dog walking, climbing stairs, boarding and other behaviors. 3. Then hand position and dog buttock position can be adjustable and contraction 4. The touch fabric with the dog is sandwich mesh cloth, which is light and breathable, with rebound function,