FiberMarker Driveway Reflectors Snow Stakes Driveway Markers 48-Inch Yellow 20-Pack Hollow 1/4-Inch (Dia.) 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 snow plow and blower 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 hollow poles, 1/4 Inch diameter by 48 Inch length, yellow; Reflective tape is silver grey, 6 inch long