Capacity and performance Supports interior doors up to about 3 kg. Power scale set to the bottom for gentle, reliable operation on light doors. Quiet and smooth closure Mute buffer provides quiet, controlled closing to reduce noise and wear. Installation and appearance Left and right decorative covers are preassembled; no separate left/right installation required. Adjustable closing feel Buffer speed can be adjusted to achieve the desired closing effect and performance. Why you need it Prevents door slams, protecting door, frame, and hardware. Delivers a smooth, predictable closing experience for everyday use. Easy to retrofit on light doors without complex setup. Applications and use scenarios Residential interiors: interior doors in apartments or homes with lightweight doors up to 3 kg. Small offices or meeting rooms: quiet, controlled closure to maintain a productive environment. Classrooms or retail back rooms: lightweight doors that benefit from soft, adjustable closing.