REFLECTIVE BASE MARKER IS EFFECTIVE YEAR ROUND - The reflective tape provided with this pack makes this the most versatile marker mount on the planet. The base of this mount will give your walkway, your path or your driveway the additional illumination to find your way. INDUSTRIAL GRADE PLASTIC PENETRATES FROZEN GROUND - Not everyone remembers to put their driveway markers up before the ground freezes, these little beauties penetrate even frozen tundra. Industrial grade plastic will not shatter. FIRM BASE KEEPS MARKERS UPRIGHT - The unique design ensures that your reflective driveway markers stay upright and if they get knocked over, they just go back into the base holder without having to make a new hole in the frozen ground. 20X MORE STRIKE SURFACE THAN A STANDARD MARKER ALONE - Why struggle in the cold with a skinny strike surface when you can use our extra-large base marker mount. SET INCLUDES 6 ORANGE UNIVERSAL MARKER MOUNTS which can be used for all standard driveway markers. Aluminum lollipop markers or fiberglass poles all work with this type of base. Power source type: Manual Universal Reflective Pole Mounting System - Frozen Ground Penetrating Base Unit 6 pack - Penetrates Frozen Ground - Mark Your Driveways, Pathways, Walkways and more Rebound MARKER MOUNTS outperform traditional driveway marker mounts with the ability to penetrate frozen ground easily. With 20x the striking surface, hammer these into the ground and any size fiberglass pole can be easily inserted.. Rebound Snow Stakes install easily into any rocky, cold or tough ground. Most current markers are hard to install, especially into already frozen dirt.