FORM – FIT – FUNCTION. The YING selections are characterized by different undercuts and heights. Positive comfortable jugs, challenging slopers, and flat crimps are represented in varying degrees, left and right-handed. Rotating this climbing hold completely changes the difficulty and preferred hold position. Furthermore, for every YIN there is the matching counterpart YANG and thus again countless block and combination possibilities. Take two holds, block the easy section and open up completely new dimensions of movement.