The upper rail for the Channel Placard for sliding doors is part of the Placard 74 Rails model and has a length of 2.35 m. It can be used with the slow system as with the normal system. It is also enabled for minimum panels 16 mm, 18 mm, and a maximum of 19 mm. This top rail is made of aluminum and as a finish, it is painted white. It is 74 mm wide x 34 mm high, in turn, it is made up of two rails through which the boards pass and its packaging contains 8 units of the upper rail.