We offer three styles of this pet knee pad for you to choose from; please select based on your pet's needs. This product provides elbow support and helps improve mobility in dogs suffering from elbow arthritis, eczema, dysplasia, and shoulder dislocation. It helps protect dogs from elbow calluses, bedsores, and supports wound healing. The patent-pending design is based on canine anatomy, ensuring a secure, comfortable fit that adapts perfectly to your dog. It offers consistent elbow support and protection whether your dog is standing, walking, running, jumping, sitting, or lying down. The soft, breathable compression fabric delivers necessary support during use, while the elastic strap and snug design allow flexibility and ample freedom of movement. Your dog should feel comfortable when wearing this product. This dog elbow protector has been tested for comfort, health, and support levels across popular dog breeds and has been veterinarian recommended. Size details: S: Leg circumference 11–13 cm, foot circumference 10–12 cm, foot height 9 cm, total height 24 cm M: Leg circumference 16–20 cm, foot circumference 14–18 cm, foot height 13 cm, total height 35 cm L: Leg circumference 22–28 cm, foot circumference 17–23 cm, foot height 16 cm, total height 41 cm