There is a pic with some scale as its very hard to judge close up.
Here are a few pics of me with my thickest which is 11mm. This has taken about a year of off and on trying to be able to take its full size. I started just being able to get a 8mm in which is in the later pictures. The longest one I have now is 15cm and 10mm max width. You can see me inserting it in the pics. I have a generous foreskin so can use it to hold the sounds in place. The long one is too big to walk around, with but the plugs I have and the thick sound which is varied in width stays in fine. Makes me a very horny doing the shopping!
On the topic of sounding and plugs though, I've just recently started experiementing with this. I'm really scared to cause damage or to lose the item inside my body... I've been experimenting with making my own non toxic shafts that can not fully submerge into my urethra. I'll post some pics when I get the chance. It'll probably never happen, but I'm infatuated with the thought of someone actually sticking their cock inside mine and fucking me urethrally. I'd have to gain a lot of size, and stretch my urethra considerably and then find a guy with a really thin cock... but damn, it would be pretty epic!
I bought my sounds via eBay from China, not expensive and they are surgical steel so easy to clean, vodka help keeps them sterile.
You may never manage to get another man in you, but have you tried docking?
Agree re the flash for every picture on here 4 more did not make the grade!