The AdirPro Fiberglass Stream Gauges is the best solution for measuring the water depth of ponds, lakes, streams, rivers, or swamps. This stream gauge features bold calibration that is protected with a non-glare coating, making it is easy to read from far away. For extremely easy mounting, this AdirPro stream gauge has stainless steel fasteners that can be attached to wood, metal, masonry and other surfaces. The sturdy fiberglass construction assures long life and will not corrode, rust, or rot.