Our magnetic latent fingerprint powders are made with the same care and attention to detail as our standard powders. The Dual Use Magnetic Latent Fingerprint Power allows for enhanced prints on multiple surfaces. Prints will appear light on dark-colored surfaces and dark on light-colored surfaces. Use our powder only on non-pourous, non-ferrous surfaces. The product also must be applied with a magnetic applicator that acts as a ”brush” by creating a ball of powder. This ball is the only thing that touches the active surface. Packed in a 1 oz, polypropylene, shatter-resistant jar. FEATURES: Dual Use Magnetic, 1 oz