Perforated rods made from solid material, length 2 m: The crossbar itself becomes a perforated support. Round bars Ø 12 to 25 mm, square bars 12 × 12 to 20 × 20 mm. Four hole variants: round perforation, square perforation, holes rotated 45°, and square with spike edge perforations. Hole spacings 120 to 220 mm.