A playpen with panels that are 24 inches high is generally suitable for small to medium-sized dogs and puppies that are not active climbers or jumpers.

Suitable Dog Breeds: The 24-inch height is a key factor, as many medium-to-large and high-energy dogs can easily jump or push out of a pen that size. Small Dogs (under 25 lbs): This size is perfect for most small and toy breeds. Chihuahuas Pugs Dachshunds Shih Tzus Pomeranians (if they are not climbers)

Medium Dogs (up to 40 lbs): The playpen might be appropriate for some calmer, medium-sized dogs, especially if used indoors and supervised. Beagles Cocker Spaniels French Bulldogs Corgis Calmer Bulldogs large pet gate/playpen for cats or dogs, it's metal & black.