One door with lock: Easy to let your pet in and out - as well as you. Top catch so the door stays shut, pets can't easily escape. Four panels with hinges: Easy to fix into different shapes and sizes - suitable for different sized doors, staircases and similar areas. Can also be folded for storage. Wooden structure: Naturally tough and sturdy - made to last. Two feet on the bottom for balance. Suitable for small and medium dogs, no taller than 50cm PawHut Finish: White