Door damper unit for interior, swinging doors. Grips door at final 15? and softly, self-closes doors more gently compared to other door closers, putting less stress on the hinges. Heavy Duty: Holds up to 220 lbs doors (100 kg). ?Invisible? design minimizes visibility of the hardware. Recommended Door Specifications: Thickness: minimum 40 mm~60 mm (1-9/16"~2-3/8") Width: maximum 900 mm (35-7/16") Weight: 40~100 kg (88~220 lbs) Can be adjusted for door weight after installation. Counterplate position can be easily adjusted by removing cover and turning micro-adjustment screws. Can be used with HES3D-E190 and HES3D-160. Includes screws and paper template for installation.