The bottom rail of the Neco range for plastic hidden rail for sliding doors is made of gray plastic, a material resistant to continuous use, so it will stay in perfect condition for a long time. Its dimensions are as follows: 14.4 mm in total height, 30.5 mm in width, and 2.35 meters in length. Its structure supports up to 50 kilograms of weight, is compatible with slow closing, and can be used with two or three doors. It is installed very easily, through screws which are included in the packaging. It is 8 units.