My previous props were rigid and the hatch had to be opened by hand. These new racks were easy to install and work great! I did the work myself but I would recommend 2 people as it's easier and smarter :) Update: They lasted until today October 21st. At first I was happy with my purchase as it solved my initial problem, but the pillars became quite stiff and it took me some effort to close the door. This became more apparent when I noticed that my friends struggled a little too, especially when trying to close it with one hand. I cleaned the racks and added lube oil from time to time which seemed to help. However, today the shelves no longer hold the door, but now it is very easy to close it :)