FiberMarker Driveway Reflective Markers 36-Inch Dark Green 20-Pack 5/16-Inch Dia Snow Poles Snow Markers Made of durable fiberglass rod with good flexiblity feature. Pole rebounds back if struck by vehicle Safety signs - Clearly mark the edge of driveways, parking lots and streets at night, bright reflection as it illuminates from a 360 degree point of view when the headlights hit markers Property markers - Keep cars and trucks off your grass, and other areas of your property, such as mailbox, curb and fire hydrant. In winter, keeps your yard from being torn up by snow plow Easy Installation - Pointed tip inserts easily into ground. A super poly cap to protect driveway pole during installation 20 pack solid poles, 5/16 Inch diameter by 36 Inch length, dark green; Reflective tape is silver grey, 6 inch long