PRODUCT RATING: 5 out of 5 (Blank: Not Rated). Click on this link to see more information, images, reviews by real users and alternatives:

Only 4*Door Hooks
[EASY TO FIT] Open door, pull back rubber door seal and fit hook under the welded metal lip. It takes seconds.
[SECURE] The anchor point under the door seal on a vehicle is very strong and will take 10X the force required to hold the bag to your roof.
[STRONG] Straps are made from high tensile nylon webbing and are flag stitched for strength. This provides the perfect anchor point for the straps that secure your Rooftop Carrier.
[INCLUDED] Only 4 X Door Hooks fitting instructions and 12 month warranty. 7×24 online customer support, ask us anything at any time.
List Price: $19.99