When you think about it, very few cracks are perfectly parallel, and secure placements are best made in pockets, pin scars or above constrictions - where there is a flare in the crack. These hybrid, OFFSET FRIENDS are the answer & allow you to make secure placements in flared cracks with each pair of cams at their midpoint, proving better stability and increased holding power. Each OFFSET combines cam lobes in ascending sizes - 1/1.5 , 1.5/2 and so on. Due to the overlapping expansion range of each combined pair of cams they also work perfectly well in parallel cracks! If you need to double up on cams or are contemplating an aid line, these are a smart addition to your rack.