Conventional cams work well in cracks & open breaks, but pockets & constricted placements can cause problems. So what can you do if the cam is too wide to fit? The answer is obvious really: reduce the number of cam lobes.3 C Us are lightweight, dual stemmed cams with 3 cam lobes, so can fit narrow placements & pockets. They have a 13.75° camming angle & are fitted with extendable Dyneema slings. The cams are also colour coded to help you make a speedy identification.