Durable ABS construction for long lasting use Sizes available for puppies and kittens Four adjustable access settings to control pet flow In only Out only In and out Closed (neither in nor out) Transparent flap for visibility Lets your pet see outside and observe weather before passing through Noise reduction and weather protection Brush strip helps reduce closing noise Blocks rain and wind more effectively If the brush strip detaches, it can be easily reinserted into its fixed groove Practical use scenarios Family with multiple small pets: use the four settings to control which direction pets can move and when Cold or windy days: set to closed to minimize drafts and energy loss Training and daily routine: switch between in only, out only, or both to fit daily activities and supervision Notes Designed to be compatible with small pets such as puppies and kittens ABS material provides durability while maintaining lightweight handling The system remains functional if parts momentarily come loose, with simple reassembly in the fixed groove