The 3M Electrical Spec. part 1421-XR/ID is a highly reliable and effective Marker System Ball Marker. Designed to effortlessly mark pipes, cables, and other electrical components, this marker system ensures quick and accurate identification of various parameters such as voltage, phase, circuit, or ownership. With its durable construction and vibrant color options, this marker system offers long-lasting visibility even in harsh environments. The 3M Electrical Spec. part 1421-XR/ID is the ideal choice for professionals seeking a reliable and efficient solution for electrical component marking.