Hinge pin door closer designed to make doors close automatically and quietly. Ideal for busy homes and public spaces where doors are often left open, this closer combines an adjustable, mute mechanism with a safety spring and simple installation to deliver reliable, loweffort performance. Key benefits Ensures doors close automatically to prevent doors being left open when people go out. Mute design reduces closing noise and softens the buffering force to avoid disturbing rest or work. Adjustable tension lets you set closing speed and strength to match different door weights and usage. Safety spring provides consistent action and reliable operation over time. Rotatable accessories prevent the wall rod from tilting or falling, improving stability after installation. Integrated traffic light lamp offers a clear visual indication of door status for quick checks. Features and attributes Function: Hinge pin automatic closer with selfclosing and adjustable damping. Compatibility: Designed for hingepin style doors used in homes, offices, and hotel rooms; fits most standard hinged doors. Performance: Smooth, quiet closing with adjustable buffer to reduce slam and impact. Installation: Simple, timesaving installation that uses rotatable mounting accessories to keep the wall rod aligned. Use cases: Suitable for interior room doors, office doors, and hotel room doors where automatic, quiet closing is desired. Practical applications Residential apartment entrance or bedroom doors to keep rooms closed for privacy and energy control. Office meeting rooms and private offices to ensure doors close quietly after meetings without manual effort. Hotel guest rooms where automatic, silent closing improves guest comfort and operational efficiency. What you get A hinge pin door closer with adjustable mute feature and safety spring. Easytouse mounting accessories that help prevent rod tilt or displacement. Visual status indicator via traffic light lamp for quick verification of door position. This door closer focuses on dependable, quiet operation and straightforward installation to reduce manual door management and improve everyday convenience.