【Product Description】 Got a lot of luggage but not enough space in your car...? Lots of luggage for camping and leisure...? Can't fit all your camping gear...? The 'Base Carrier Bar Set of 2' is a great solution for those times! It can be installed on cars with a door frame spacing of 131cm to 139cm. ● Easy to Install on Your Car Choose the holder that fits your door frame from the two types of holders provided, and attach the base carrier bar. You can carry large luggage that won't fit in your car, or items like road bikes. Also, you can put dirty or smelly items on the roof, which is helpful when returning from camping! ● How to Install the Base Carrier ※ This product cannot be installed on all cars. Please check the spacing of your car's door frame in advance. 1. Insert the steel strap into the accordion, and connect the holder (M1 or M2) that fits your door frame to the steel strap. 2. Remove the nut on the leg of the bar, and pass the foot through the screw. Tighten the nut to secure the foot, then attach the rubber pad. 3. Clean the roof of the car and place the bar on the roof. 4. After installation, release all 4 locks on the bar. 5. (When using the M1 holder) Align the holder with the door frame, cut the accordion to the appropriate length according to the position of the foot, then push the steel strap into the bar and secure it. 6. (When using the M2 holder) Align the holder with the door frame, push the steel strap into the bar, and pump the lever 3 to 5 times. ※ When pumping, pull the lever to the vertical position. Be careful not to overtighten to avoid damaging the roof. 7. Tighten both sides of the bar, confirm that the rack is correctly centered, and then confirm that the bar is securely fixed, and lock the bar.