A premium aluminum aero crossbar available in multiple lengths in black or silver, engineered with T-slot attachment and a wind tunnel designed bar profile for exceptional noise reduction. Works with all StreamLine series tower systems. Features: Made of premium extruded aluminum and powder coated for maximum durability T-slot technology with rubberized in-fill strips maintains uninterrupted airflow over the entire crossbar for class leading noise reduction and aerodynamics Max Load: 165lbs (75kg, per pair of bars) Sold in a Pair