PETCUTE Cat Flap Dog Door 4 Way Locking Pet Door for Cat and Dog,Fast installation, Durable,Easy Fitting,Dog Flap Pet Door Flap for Indoor Outdoor Doors White L

4-way locking system, in-only, out-only, Open, or Locked. Different size have differnt self Lining thick - ideal for all doors, panels and walls. Draft and waterproof transparent flap with mute closure. Easy to install, and cat get accustomed to it quickly. Excellent Quality: Full refund guarenteed.