Midwest Black E-Coat Exercise Pen with DoorBlack E Coat Exercise Pen With Door by Midwest Includes Double Latch Door A Midwest Exercise pen is great if you want to keep your pet safe and contained, but with room to move. Each exercise pen is comprised of eight hinged panels, each 24" wide, making the panel 16 linear feet. The height of the panels varies by model from 24" to 48" Can be deployed in any shape, such as 4ft x 4ft square, or 4ft 5in x 4ft 5in octagon. Keeps your dog safe and