We offer three styles of this pet knee pad for you to choose fromplease select based on your pet's specific needs. This product provides elbow support and helps improve mobility in dogs suffering from elbow arthritis, eczema, dysplasia, and shoulder dislocation. It protects against elbow calluses and bedsores, and aids in wound healing. The patent-pending design is based on canine anatomy, ensuring a secure, comfortable fit that supports and protects the elbow in all positionsstanding, walking, running, jumping, sitting, or lying down. Made with soft, breathable compression fabric, it delivers essential support during recovery or active use. The elastic strap and snug-fit design allow flexibility and full range of motion while ensuring the dog remains comfortable. This elbow protector has been tested for comfort, health, and support levels across popular dog breeds and is veterinarian recommended. Size guide: S: Leg circumference 1113 cm, foot circumference 1012 cm, foot height 9 cm, total height 24 cm M: Leg circumference 1620 cm, foot circumference 1418 cm, foot height 13 cm, total height 35 cm L: Leg circumference 2228 cm, foot circumference 1723 cm, foot height 16 cm, total height 41 cm