These 5cm x 5cm L-shaped ABFO style scales are perfect for all areas of forensic science photography. An L-shaped scale allows for correct perspective documentation of the evidence, preventing distortion of the image. Printed on rigid plastic with a matte finish. Perfect for photography in most lighting conditions. White scale includes photo gray imprint, fluorescent scale is imprinted bright orange on white plastic. Custom printing available. Accuracy verified with a NIST traceable standard.