Like its predecessors (this is the replacement for the Thread Zapper 2), the new and improved Ultra Thread Zap will trim, burn, or melt thread with one touch. It heats instantly with the push of a button! The extra-fine tip allows for precision application, making it ideal for finishing beadweaving & stringing projects, eliminating frayed ends. What makes the Ultra Thread Zap special are a retractable tip for added safety, a more ergonomic & compact design for greater comfort, and it includes an extra tip which stores in the battery compartment! Battery-operated (two AAA, not included). CAUTION: Tips get extremely hot when tool button is depressed. Keep away from children, flammable materials, & skin. For professional use only.