This brake set is designed to work in systems with 2 or 3 doors, its composition consists of some small pieces that are placed in the upper part of the profile, stopping the sliding of the door. This brake allows the door to avoid sudden movements and to stay in one position. The material with which it is made is plastic and aluminum for greater resistance in some areas. Packaging is a single set of pieces. It should be noted that it is necessary to have an upper rail of the Space model and sets of upper trolleys to be able to install this add-on.