The LDD-V100 door damper makes it possible to gently and silently close room and access doors with a weight of up to 100 kg and a width of up to 90 cm. The mechanism engages during the last 15 degrees and softly pulls the door shut. When opening the door, on the other hand, there is hardly any resistance. The damper works without a visible lever and can be integrated into the door in its entirety. This means it is invisible when the door is closed. The system also has no visually distracting bolt and works without one. A simple door knob is all that is required.