Similar to our 6" scales, these precision metric scales are made of matte-white, non-reflective rigid plastic. One scale is 5 cm long and the other is 10 cm long. The 5 cm scale has one photomacrographic circle and the 10 cm scale has two. Each scale has a black bar on it which runs the full length of it. This lets you make a general measurement on evidence which is photographed from too far a distance to see the millimeter lines. Because these scales will be used for evidence photography, our name does not appear on the front to distract from your photo. If you wish to write a case number, date or your initials on the scale, place a piece of frosted tape on the front and write on it with a ball-point or felt-tip pen. When done, peel the tape off and use the scale again.