The Midwest Sunscreen Exercise Pen Top secures your pet against the elements. The 4×4-foot black woven polyethylene sunscreen with a vinyl-coated polyester edging provides up to 80% protection against potentially harmful sunrays. Comes bundled with 16 plastic strap ties to fasten the sunscreen on top of your pet’s exercise pen.Midwest Homes for Pets is a division of Mid-West Metal Products and markets a variety of containment and care items for your pets. Its high-quality dog kennels training crates and exercise pens are made with a commitment to quality and an efficient design that suits almost any need. Midwest also offers an expanded line of accessories including beds for dogs and cats crate casters feed and water bowls and nameplate kits. Midwest Homes for Pets is a four-generation family business guided by the simple objectives of superior workmanship low cost and extraordinary customer service.