This heavy-duty mechanical device that creates a nice flash of fire. Can also be used to create electrically crackling sparks. So useful you'll carry one everywhere you go! Great for magic shows, wizard costumes, etc. Hands can be shown empty front and back; can be used in right hand or left; can be shot up or down. Spark Wheel Assembly is machined out of brass, flint is replaceable, and construction is all metal. Requires Flash Cotton (not included). Electric Sparkle Additive is optional. Specifications Dimensions: 1/2" diameter x 1/2" Ignition: Spark Wheel Assembly