Does anyone have a close up pic of a jack in thier boat?

[Hack3]

I was wanting to see if anyone on here has a close up pic of a jack in thier boat to give the hull some roll to if if you have a pic can u post it on here or send it to my email at hotcwby3@aol.com i am just wanting to see how they look and how they work in the boat thanks for your help Hack3

 

[c chardt]

here is some that i built

 

[c chardt]

if you look you can see them in this boat as well