Pneumatic technology helps reduce running noise and can contribute to better fuel efficiency. Alloy material doublelayer luggage frame, 130 cm in length, featuring four diagonal pillars and 9 cm Ushaped screws for secure mounting. Universal car luggage frame design. Strong and durable construction resists deformation and bending, capable of carrying heavy loads with stability. Rigorous workmanship and smooth surface protect both the frame and your luggage from damage during transit. Compatibility: Universal car luggage frame suitable for a wide range of vehicles. Use scenarios: Family road trips requiring extra luggage on the roof for multiple suitcases and travel gear. Longdistance travel that involves carrying heavy items or bulky equipment. Business trips where additional luggage capacity is needed without compromising luggage protection.