The Liberty Hidden Countertop Support Plate easily mounts to knee walls creating the ultimate floating counter appearance. Each hidden countertop support can hold an astounding 375 pounds, allowing you to safely mount thick granite, quartz, marble, other natural stones and concrete countertops. Route out the top of the knee wall for a flush mount hidden bracket that allows for plenty of chair and leg room. Raw Steel finish can be painted to match any desired design. White powdercoat is weather-resistant, rust-resistant, and not corrosive as long as powdercoat remains unmarred. Fasteners not included.