100% UV-treated SunBlock polypropylene top Reinforced brass grommets for durability Reduces kennel temperature up to 15 degrees Cable ties and instructions included Choose the best size for your kennel. The SunBlock Top is a woven 100% UV treated black polypropylene top with reinforced brass grommets every 12. The SunBlock Top provides shade to help keep your pet cooler and reduce the temperature inside the kennel up to 15 degrees. Cable ties and instructions included. Remove top when it could be subject to snow/ice as it could become weighted down and cause injury to your pet or damage to the kennel. SIZE DIMENSIONS Small/Medium Sunblock TopFits both the Small and Medium Boxed Kennels- Dimensions: 7.5L x 7.5W feet Large Sunblock TopFits Large Boxed Kennel- Dimensions: 12L x 7W feet X-Large Sunblock TopFits X-Large Boxed Kennel- Dimensions: 13L x 7.5W feet About PetSafePetSafe products provide convenience and freedom to pets and their owners alike. Headquartered in Knoxville Tenn. PetSafe introduced the first do-it-yourself electronic fence to the pet market in 1991 and has since become a global presence. PetSafe offers a wide array of training containment safety and lifestyle products. The human-animal bond has become increasingly important in today's society and PetSafe helps people become the responsible caring owners they want to be. PetSafe emphasizes ground-breaking research in its products to provide cutting-edge innovative solutions to your pet's needs. Employees love the products as well - the company headquarters boasts everything from a doggie spa to a kitty gym and President/CEO Randy Boyd uses many PetSafe products to keep his dog Spanky healthy and happy. Size: Sm/Med - 7.5 x 7.5 ft.