100% brand new and high quality Features: Transparent Cat Door for Glass Door: The flap of cat door for door is transparent, you could see the movement of your pets clearly and the clear design would give all glass doors and windows up to 1.2'' a perfet fit. 4 Locking Methods :You can adjust the lock status of the pet doors for cats according to the travel habits of the pet. The sliding glass pet door have four states: open, locked, in-only and out-only. Durable Material & UV-Resistant Design:The sturdy flap of the indoor cat door is made from high-quality ABS. Our window pet door can effectively reflect ultraviolet rays and maintain the indoor temperature. Silent Action and Dust-proof Design:The magnetic closure keeps the cat doors for interior doors closed to remain quiet and not disturb the pet owner, and nylon brushes reduce of the cat flap door the sound of door work and reduce dust. Easy to Install:Our small dog door would fits most doors up to 1.2'' except tempered glass, refer to the seller's pet door installation method, you only need few tools to complete the installation. Specifications: Material:PVC Color:Transparent Size: Approx. 30x30x4 cm/11.81x11.81x1.57 inches(External Dimensions) Size: Approx. 18.5x20 cm/7.28x7.87 inches(Inner Dimensions) Size: Approx. 26.7 cm/10.51 inches(Suggested Opening Size) Package Includes: 1 x Pet Door Notes: 1.Please allow 0-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3.Other parts are not included. Thanks for your understanding.