Upper rail railway system for hanging sliding doors. The assembly is done by pre-drilling in the guide and, thanks to additional supports, it can be attached both upper and laterally. In addition, its shape allows easy car mechanism and ensures great final stability. The measures of the section of the lane are 42.3 mm high and 34.5 mm wide, while the length is 2 m. This piece is made of aluminum with a matt anodized finish that guarantees durability and resistance to corrosion. The packaging contains 8 units of the product.