The pet fence adopts a thickened design of heavy-duty iron metal pipes. The epoxy coating can increase the service life and prevent rust and fading the surface has been treated and is not rough or sharp. Double door locks are different from traditional door locks and prevent pets from opening the door when used alone. This pet playpen is ideal as a puppy playpen or as an exercise area for small non-climbing animals including rabbits, ducks, turtles, guinea pigs