This device is a short duration gerb that produces a very quick dense plume of bright titanium silver or ferrotitanium gold sparks.
Dimensions
.76" od x 2" or 2.5" long (igniter installed, standard length 1 ft.).74" od x 2" long (igniter installed, standard length 1 ft.) -for 1/4 second gerbs. Will fit into 1/2"" EMT electrical conduit connector.