Pure Copper Basin – heavy gauge copper features a Greek-inspired design on the rim. American Artisans - exquisitely designed by American Artisans and metal workers. REDESIGNED FOR THIS YEAR - Advanced Stability, now featuring threaded connections for unmatched stability, effectively eliminating wobble and ensuring a steadfast fit. The Right Depth - depth of basin is 2” as recommended by the National Audubon Society. Good Directions offers a Lifetime manufacturer's warranty.