U-Phase wire marker kit. Easily and permanently mark wires inside of panels, automotive wires, etc. Can be used with line or low voltage cables. Features patented design. More efficient and cost effective than tape. Marks up to #6 AWG wire. Quick drying, highly visible paint. Resists moisture, dirt, oil and UV light. Adhere to code regulations by having wires marked properly. Perfect for phasing of electrical panels.