Hello Gert,
I have put photos of these one several times before but in the interest of all you new guys, I guess it's time to do it again. These are pictures of the 24 inch size. I also have them in 22.5 inches and I'm trying to get some made in 26.5 inches. Other than the length, they are all about the same. The 26.5 inch ones will have the extra length added to the rear end only. I hope this helps you visualise what they look like. These one piece machined ribs will save you and enormous amount of time when constructing your new double rifle or slug gun. Bob