I ordered some stronger arms. Right now I have 20# and going to try 30# when I get it perfect I'll give a breakdown of exact parts list. It's not hard but I had to buy 4 times the things I needed to test them. I should have the right parts in a couple days and I'll attach where I got them and a pic. These window arms have been the only thing I havnt liked about the boat. They never hold the window open when I hit a wave. These arms will fix it. I only put them on one side of the window and used the side of each window that is close to center as it is straight and the other side is at a angle.