Pet Life Extreme-Neoprene Joint Protective Reflective Pet Sleeves The Extreme-Neoprene Patented Joint Protective Reflective Pet Sleeves are composed of lightly flexible Neoprene. These Pet Sleeves are perfect for all pets in operation recovery and can help prevent joint operation. These sleeves are designed and engineered to place less stress on your pets knee joints and are essential for all older dogs, puppies and even cats. Reflective lining surrounds the sleeve for added protection during night walks. Comes as a set of 4. Features: Patent-pending design Composed of flexible neoprene Provides full joint support and offers less stress on knees Velcro closures make sleeves easy to get on and off Reflective lining Item Specifications: Package Count: 4-Pack Sizing: Please see Size Chart.