Ideal for households with children / pets and enthusiasts seeking home security solution without professional assistance Perfectly suited for interior / exterior door in bedrooms, bathrooms, kitchens, and commercial spaces requiring reliability auto closing functionality and resistance Built in quiet spring systems and resistant aluminum alloys ensures smooth, rustproof operations, while the simple installation allows setup in under 5 minutes Combines and convenience with its auto shutting capability that prevents accidental open door, maintaining privacy and energy efficiency in any living or working environment quiet door closure with our automatic door closing, featuring a reducing spring mechanism and durability aluminum alloys construction for long lasting in homes and offices, Manufacturer: Tsophreniq