I installed 4 sets in my 18' aluminum boat. I use the boat for hunting and fishing. Therefore to allow more flexibility in what I can do with the boat, I ordered it with a wide-open layout. Consequently. I do not have a lot of built-in storage and no rod lockers. These Blacktip rod holders have served me well. Easy to install, durable and they hold my rods securely, even at interstate speeds. Good value.