- Durable plastic frame: a high quality construction. Includes a connecting rope, two brackets, and a baffle for reliable operation. - No drilling and easy installation: clips onto the edge of the door frame without damaging the door. Quick setup with no tools required. - Automatic closing for convenience: pets can pass through freely and the door closes automatically behind them to help maintain indoor climate and privacy. - Adjustable height: designed to sit alongside the door frame; installation height can be adjusted to fit the height of cats and small to medium dogs. - Practical use scenarios: - Household with cats and dogs that need occasional outdoor access while keeping rooms climate-controlled. - Rental homes or apartments where door modifications are not allowed. - High-traffic doors where a secure, automatic close helps reduce drafts and noise from every pet entry/exit.