The PHOENIX CONTACT part 5060906 is a white, unlabeled Zack marker strip. It can be easily labeled using PLOTMARK or CMS-P1-PLOTTER. This marker strip is designed to snap into the tall marker groove and is suitable for terminal blocks with a width of 5.2 mm. The lettering field size is 5.15 x 10.5 mm, providing plenty of space for clear and legible labeling. Each strip comes with 10 individual labels, allowing for easy organization and identification of terminal blocks.