Abstract: A drawer runner having telescopic rods sliding on balls, and consisting of extruded aluminum tubular sections.The rods are characterized by a rhomboidal tubular section having arched sides, sliding in another tubular section having a square cross-section and rounded edges, so as to form four identical sliding tracks for the balls, staggered at 90.degree., and delimited externally by the rounded corners of the external section and internally by the arched sides of the internal section.