Sirchie MDM150 Mark-n-Doc #'s 1-50, Metric

This kit of 50 numbered evidence markers have scales printed onto each marker. You dont need to mark and then place a separate scale down before photographing items of interest. Its a two-in-one tool that does double duty. Place the marker and youre ready to photograph with scales for reference. And they have multiple punched holes so that they can be firmly secured to vertical surfaces.