Description: 【Material】: Made from iron and ABS , this Roof Box U Bolt Clamp is sturdy, durability and reliability, ensuring long service time 【Luggage Rack Fixation】: This Roof Box U Bolt Clamp is designed to secure your car's luggage rack, making it convenient for you to fix your luggage securely 【Easy To Install】: The Rooftop Cargo Carrier Rack Bolt is easy to install and does not require complex steps to complete the installation 【Application】: Roof Box U Bolt Clamp is not only suitable for car luggage racks, but also for other structures that need to be connected, such as roof luggage frame, crossbar connections, etc., to meet the needs of different scenarios, and is an ideal roof luggage rack accessory 【Package Includes】: Each package comes 1x Roof Luggage Rack Bolt Clamp Specification: Material: Stainless Steel   Size Chart:Inner width: 6cm/2.36inch Package Includes: 1 Roof Box U Bolt Clamp Note: Please allow slightly errors due to manual measurement and different monitors.