Soft closing system for the Flowline of sliding doors with an optional installation that ensures a smooth closing and smooth sliding. Available in 30 kg and 50 kg force presentations. The parts are made of steel and plastic. Each mechanism is inserted through one of the sides of the upper Flow rails and fixed with a hexagonal wrench. Particular attention must be paid to the orientation of the mechanism when inserting it into the rail. The presentation in packaging is 5 units.