【4-Way Lock】Four modes (in only, out only, in and out, closed) can be easily controlled by the button on the door. 【Pet Body Size】5.9 inches (15 cm) wide * 6.1 inches (15.5 cm) high, suitable for cats whose waist circumference is less than 16.1 inches (41 cm) to easily pass through the cat flap. 【Slient & Freedom】The magnet and non-direct contact brush can reduce the noise caused by the pet entering and exiting. The transparent door panel ensures that pets can observe the environment in & out at any time safely. 【Easy Mounting】Can be installed on a wall/wooden/Upvc door. The installation diagram on the package shows how to install it easily. 【Quality and Quality Guaranteed: The beautiful and durable ABS material will not be damaged by the influence of daily use.