Keson STK21GL Surveyor Stake Flag, Glow-Lime (Pack of 100) Made of bright-colored PVC for high visibility Ideal choice for professionals and diy-ers Designed for surveying, construction and agriculture or making location of underground sprinklers, pipes and lines Fade-resistant color for maximum visibility Available in Blue, Green, Glo-Lime, Glo-Orange, Glo-Pink, Glo-Red, White, and Yellow