Distance between bars in the panel: 6. Dog Size: Medium (26 - 60 lbs). No PO box or APO.The item "Pet Playpen 16 Panels Heavy Duty Metal Dog Exercise Pen Fence with Hinged Door" is in sale since Sunday, April 12, 2020. This item is in the category "Pet Supplies\Dog Supplies\Fences & Exercise Pens". The seller is "itsdubsdailydeals" and is located in Multiple. This item can be shipped to United States.