These folding cardboard SINGLE-USE Photo Evidence Markers are ideal for all crime scene photographic identification requirements. Each marker features a three sided folding design with a universal bright yellow surface which may be marked on each side with numbers, letters, arrows, or other information. The three sided design allows for photography from any angle without repositioning the marker. Perfect for use as a marker at contaminated scenes, or reused multiple times in the office or laboratory. The 6” markers feature a 4” wide base. Provided in packages of 50 evidence markers. Markers are delivered flat and may be folded and assembled at the scene prior to use.