Gardner Bender's new U-phase wire marker takes simplicity and efficiency to a whole new level. Traditionally phasing or color coding wires involved wrapping the wires in colored tape, but now with the U-phase you are able to simply slide the patented designed marker tip across the wire. The U-phase is Ideal for phasing of electrical panels, color coding, identifying and wiring circuits, marking computer cables and countless other applications making it an essential tool for any electrician.