Zap II Thread Burner The Zap II Thread Burner is an inexpensive way to trim, melt, or seal thread with just a touch. The extra fine tip allows for precise application and is great for finishing bead weaving and stringing projects. Operates on a single AAA battery. (not included) Length: 6" (including safety cap) Why do I need this item? If you are stringing beads you know how important it is to have clean string and thread ends. This tool will make your project even better, by sealing those loose thread ends. Tip heats instantly with the push of a button, Trims, burns, or melts thread with one touch Ideal for finishing beadweaving & stringing projects, Operates on a single AAA battery. (not included)