T' trademark name for an igniter produced by AeroTech, Inc. It is a laminated assembly consistin' o' a two copper foil strips separated by an insulator, shiver me timbers, with a quantity o' pyrogenic compound on one end. Begad! It normally requires a special clip for electrical connections, ya bilge rat, but some rocketeers have mastered t' "Z-Fold" which allows use o' normal alligator clips.