Eight Hdpe panels reshape this dog playpen into octagon, square, rectangle, or house layouts, enclosing up to 50 x 50 inches of play space behind 32 inch walls. A lockable door rail lets pets in and out without lifting panels, suction cups grip indoor floors, and gripping stakes anchor backyard sessions. Tool-free connectors assemble the 24.5 lb pen in about 20 minutes and pack flat for travel.