Four modes for flexible access - both sides closed; both sides open; exit-only (cat can go outside but cannot come back in); enter-only (cat can come in but cannot go out) Premium material - magnetic door made from high quality ABS plastic, corrosion and oxidation resistant, rust protection, robust and durable Fine workmanship - plastic hatch with smooth, burr-free edges that wont scratch your pet - suitable for installation in pet cages and room doors Easy to install - simply turn the screws to secure the door firmly - uses the full screw, white cover adds to the finished look Compatibility and use - suitable for pet cages and room doors Use scenarios - install on a room door to control indoor and outdoor access while giving your cat the option to go out or stay inside - install on a pet cage or crate to manage movement during playtime, training, or transport - use in apartments or homes with separate living areas to keep pets contained or granted limited access as needed