Duratech 4″ × 5″ Survey Marking Flags – 36″ Wire Staff – Fluorescent Orange (Case of 1000) Duratech 4″ × 5″ survey marking flags with 36″ wire staff provide a durable and highly visible solution for marking utilities, survey points, construction layout, and site boundaries. Manufactured from weather-resistant 4-mil vinyl and mounted on a flexible steel wire staff, these flags insert easily into soil, gravel, or turf and remain visible in demanding jobsite environments. Flags are sold per case of 1000 (10 bundles of 100), making them ideal for survey crews, utility locators, and construction professionals requiring dependable marking supplies in bulk. Fluorescent Orange flags follow APWA / One-Call utility marking standards and are used to identify communications, alarm, or signal lines, including fiber optics and cable TV. Key Features • 4″ × 5″ vinyl flag size – standard survey marking flag used for utility locating and construction layout • 36″ flexible steel wire staff for easy ground insertion and improved visibility above grass or soil • Durable 4-mil vinyl material resists tearing, fading, and weather exposure • Weather-resistant construction designed for outdoor surveying, construction, and utility locating work • Sold per case of 1000 survey flags (10 bundles of 100) for convenient bulk purchasing and large projects