HPL product manufactured with high-tech polymers which provide extreme durability for both interior & exterior use. Features a core comprised of thin layers of kraft paper saturated with phenolic resin then pressed under high temperature & pressure. It is then cut to size, inspected & coated with a protective film. Finished color of core is black. 12mm thickness Easy to clean, water-resistant, UV protected, environmentally friendly & low maintenance Predrilled 2″ umbrella hole with grommet Table tops ship with specialty screws and drill bit. Pilot holes must be drilled using included drill bit with stop and specialty screws must be used to anchor base to top – incorrect hardware or mounting process will void the warranty.