V-Loc's NCHRP 350 crash-tested and approved flush-to-the-ground configuration allows sign posts to break off cleanly at ground level, with a 360º impact zone. Other mounting systems extend above ground level and can come in contact with a vehicle's tires and/or gas tank upon impact, potentially causing roll-overs and explosions. Save lives and reduce your liability by using V-Loc sockets to safely anchor all of your posts.