Knee supports for large dogs. There are two items: one brand new and one almost unused, having been used only once. Made of high-density material, it has waterproof and heat-retaining properties. It's washable and easy to use. Size: XL Length: Approximately 23.5 cm Upper width: Approximately 18.5 cm Lower width: Approximately 14 cm Please note that there may be a 1-2 cm error due to manual measurement. For dog fracture treatment and senior dog care.