Removable clamps. The foldback clips are a practical means for temporarily clamping together papers or folders. Their construction principal is interesting because the small handles used for opening the clamp can be folded back unobtrusively behind the clamp itself. In addition, they can also be used as hangers.Foldback clips come with the following span distances (Sd):- w = 15 mm Sd = 6 mm - w = 19 mm Sd = 7 mm- w = 25 mm Sd = 9 mm- w = 32 mm Sd = 13 mm