Most towers do not have a completely vertical leg, so why purchase a board rack that does not have a swivel mount? Our angle mount kneeboard rack can be mounted to any tower in just about any angle. The forks are four inches wide and eleven inches long and they come with a rubber insert between the fingers to protect your boards. These racks are made of solid polished aluminum and they come with every thing that you need to install and use. Get those boards off the floor and out of your way and on to the tower.