The panels are very small compared to other dog training/playpens. The metal rods are very thin and bend easily. The door is very flimsy and thin. My dog weighs 85 lbs and is a very big girl. She scaled the pen in less than 5 minutes of being in it. I also bought 2 exercise pens to make a bigger play area for my dogs. I am very disappointed and am trying to figure out how to pack it all up and return it. I need something bigger and stronger maybe even with a cover.