Parts List: 1 x Cat Door Highlight description: [Upgraded 4-Way Lock] This upgraded cat door features a flap that can be locked and set to 4 modes such as in-only, out-only, fully open, or closed. This provides flexibility in controlling your cat's movements. [Peace and Quiet in Your Living Space] Unlike traditional cat doors or no-flap doors, the flap of this cat door automatically resets quietly, ensuring peace and quiet in your living space. It helps keep unpleasant odors of the cat litter and prevents the leakage of cold or hot air. [Quick Installation] The cat door comes with a straightforward instruction and necessary accessories, allowing for a quick and easy installation on most solid or hollow wooden doors for your bedroom, bathroom or living room. It can be installed within minutes. [Sturdy Construction] Made from high-quality ABS material, this pet door is sturdy and long-lasting, ensuring reliable performance for your furry friends. [Size Options] This cat door is available in two sizes to accommodate cats weighing 11 pounds or less and 16 pounds or less. The door inner frame measuring 15 x 15.5 x 7 cm is for 11-pound cats and 20 x 18.5 x 7cm for 16-pound ones. You can choose the right size for your cat and train them to pass through the door freely. Detailed description: Description: This cat door will provide convenience, safety, and comfort for your furry friends. It allows your cat to move freely in and out of rooms while keeping unwanted odors, dogs, and children at bay, thus providing independence and freedom for your furry friends. Then, you will live in a comfortable and peaceful living environment with your pets. Key Features: To Create a Comfortable Living Environment for Cats and Owners: The cat door features a flap that operates quietly, avoiding disruptive noise disturbances and maintaining a peaceful environment for both pets and owners. It is also designed to keeping out unpleasant odors of cat litter, as well as noisy dogs and kids. Sturdy and Convenient Design: This cat door is made from high-quality ABS material that is sturdy and long-lasting, able to withstand frequent use and provide reliable performance over time. The upgraded locking mechanism comes with 4 modes to control the access, which makes it more convenient than traditional doors. Specifications: Product Name: Cat Door Material: ABS Color: White Size(Optional): M: 22 x 19 x 7 cm(Outer Frame);15 x 15.5 x 7 cm(Inner Frame) L: 27 x 23.5 x 7 cm(Outer Frame);20 x 18.5 x 7 cm(Inner Frame) Notes: 1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2.Please allow slight dimension difference due to manual measurement. [Upgraded 4-Way Lock] This upgraded cat door features a flap that can be locked and set to 4 modes such as in-only, out-only, fully open, or closed. This provides flexibility in controlling your cat's movements. [Peace and Quiet in Your Living Space] Unlike traditional cat doors or no-flap doors, the flap of this cat door automatically resets quietly, ensuring peace and quiet in your living space. It helps keep unpleasant odors of the cat litter and prevents the leakage of cold or hot air. [Quick Installation] The cat door comes with a straightforward instruction and necessary accessories, allowing for a quick and easy installation on most solid or hollow wooden doors for your bedroom, bathroom or living room. It can be installed within minutes. [Sturdy Construction] Made from high-quality ABS material, this pet door is sturdy and long-lasting, ensuring reliable performance for your furry friends. [Size Options] This cat door is available in two sizes to accommodate cats weighing 11 pounds or less and 16 pounds or less. The door inner frame measuring 15 x 15.5 x 7 cm is for 11-pound cats and 20 x 18.5 x 7cm for 16-pound ones. You can choose the right size for your cat and train them to pass through the door freely.