The BestPet playpen is a heavy-duty fence that can be used for both cats and dogs. This black metal fence weighs 56.95 pounds, making it solid and secure. Ideal for small pets, the fence measures 40 inches high and 31 inches wide. This exercise pen is easy to put together and can be assembled without the need for tools. The playpen consists of eight panels that enclose about 33 square feet of space for pets to enjoy.