Abstract: An apparatus for cutting hair at a predetermined measured length is provided using a clip device having a first and second jaw member, whereby each jaw member has a clamping portion and a handle member. Pressure applied to the handle members causes the clamping portion to separate, such that a section of hair may be encompassed thereby. Depending from the first jaw member are base spacer attachments arranged to rest on the scalp while grasping the section of hair between the clamping portions. This allows for manual trimming with scissors along the upper edge of the clamping portion. Said section of hair is therefore cut at a predetermined length measured by the combination of the height of the jaw member and the size of the spacer attachments selected.