4x Rod Holder for Tracker Boat Versatrack System - With Cannon Rod Holder Installed Brackets are made from Aircraft grade aluminum (NO PLASTIC  NO WOOD) - 1/8" thick 2 x 7 3/4" plate & 1" x 1 1/2" x 1/8" supports - riveted on the plate. Finished with ceramic paint - strong and durable. Proven and tested on all types of fishing - even deep trolling for salmon - or large lake trophy musky fishing. Preinstalled CANNON ROD HOLDER (360 adjustable  horizontally and vertically EXTREMLY STURDY DESIGN - Your fishing rod may fail - but your holder will not. Easy to install / reposition / remove