These 40pcs red flag markers are for marking lawns, landscaping, yard watering, irrigation, dog training yards, and building measurement. Made with material, these flags are highly visible and to wear and tear. The bright red color makes them easy to spot, and they are suitable for a variety of outdoor applications. Eye-catching marking flags can a lot of information and can be used for safety warnings, traffic directions, site marking, building location and surveying, engineering marking, pipeline and cable locating, emergency marking and more writable flags can be used to mark lawn and property boundaries, mark landscaping plans, identify plants, and sprinkler heads and hoses, denote special significance, mark areas to be treated, guide pet training, science education, and more Colour:Red Material:Polyester Package Contents: 40 x Flags Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.