6 in. Blue Survey Markers are durable whisker-style ground markers designed for fast, accurate, and highly visible marking in construction, surveying, landscaping, and utility applications. Each marker includes a flexible UV-resistant whisker flag paired with a lightweight stake for easy setup and reliable placement in a wide range of soil conditions. Ideal for marking utilities, grading layouts, irrigation systems, property lines, trail paths, and temporary jobsite reference points. Designed for professional-grade performance, these reusable ground markers provide better visibility and durability than traditional flagging tape while remaining easy to move and reposition as project conditions change. Available in industry-standard APWA utility marking colors including Orange, Blue, Green, Pink, Red, White, Yellow, and Purple.