This robust door closing functions effectively on various door types including wood, metal,, screen, and doors, installed indoors or outdoors Featuring double speed Adapter, the hydraulic door closing precise control over closing and latching speed, utilizing a soft close design to minimize slamming and noise Suitable for both homeowners and professional managing light commercial settings like offices, schools, and stores requiring dependable door closure Crafted from rust resistant cast aluminum with a rack and pinions hydraulic systems, this without handed automatic door closing ensures Enduring and includes hardware for easy left or right hand installation This heavy duty automatic door closing reliably shuts doors from any position, from remaining open and is ideal for doors weighing 25–65 kg and up to 43.3 inches ( 1100 mm) wide, Manufacturer: BULAIDAI