CAMP Tricam Evo. Look on the rack of most experienced trad climbers and you are almost certain to see an assortment of Tricams. Most climbers agree that visiting the Gunks without multiple Tricams is a serious mistake. These wondrous pieces of pro can be used either as cams or nuts and often work where nothing else fits. Tricams are ideal in horizontal cracks, pockets, and shallow vertical cracks. The larger sizes are an affordable way to augment a rack of cams and are ideal for belay anchors due to their high strength and light weight. Tricams can also be placed in icy cracks where regular cams do not work.