Zero Edge Protractors Individual but dries immediately once contacting

but dries immediately once contacting the paper

5 volt alkaline batteries (included) which provide approximately 11 hours of continuous power-on use

Prints appear immediately

The Bullet Trajectory Angle Finder calculates the projection of the bullet trajectory

Zero Edge Protractors Individual but dries immediately once contactingThe Zero Edge Protractors enable the zero line to be placed directly next to the evidence for accurate measurements. Featuring large, easy to read markings and numbers on a non glare surface for easy photography. Ideal for blood spatter and bullet trajectory investigations, it is a great addition to any string or trajectory kit.