Extra secure locking point for use indoors and out Above ground stronghold model attaches to ground, wall, truck or trailer bed Domed shape can be driven over without damage to car Provides a convenient and consistent location for locking valuable equipment 5/8-Inch cement anchor bolts install directly into cement (includes masonry bits) Steel shackle lays flat within domed body when not in use, making anchor safe to drive or walk over Weatherproof and is compatible with Kryptonite chains and cables Recommended for both residential and commercial installation