HIGHLY VISIBLE AT NIGHT! Each one is wrapped in 8 inches of reflective tape makes it easy to be seen while headlights hitting. Guides you to access safer in and out of garage and other driveways. PROTECT YOUR LAWN Clearly marking the boundaries and keep cars and trucks off your elegant lawn and garden. Protect your mailbox, curb and sprinkler from the snowplow in winter. MORE DURABLE & LESS COSTLY Made of durable fiberglass with excellent flexibility, rebounds back quickly if strucky by vehicle. You can easily avoid the costly damage by staking these markers. INSTALLATION INSTRUCTIONS For the warm and soft ground, simply strike the pointed end into the ground; For the frozen and hard ground, drill the hole with a drilling tool and insert the markers. WARRANTY We stand behind our products! All items sold by ANLEY come with a 3-MONTH replacement warranty.