Phoenix Contact 0808671 Zack Marker strips are available in flat form with a white label printed horizontally, featuring consecutive numbers from 1 to 10, then 11 to 20, and so on up to 491 to 500. These labels have a latching mounting type suitable for terminal blocks with a width of 5 mm, and each strip includes ten individual labels with text fields measuring 5.15 mm in both height and width.