This sun shade is specially designed for the FXW 50-inch height Rollick and Instant dog playpens. The UPF 50+ fabric blocks 98% of UV rays and over 95% of harmful UVA rays, providing effective sun protection for pets. The shade sets up in just one minute with no tools required. A convenient carry bag is included for easy portability and storage. Note that the playpen is not included with this purchase.