Handmade - Each piece is unique Waterproof - nevertheless, we recommend to use Inliners Material not suitable for outdoor use 100% handmade with great deliberation, the surface of these SHELL containers is coated with real sea shells. The planter would absolutely be a noticeable art piece in any indoor environment with its spectacular sheen of shells. The square white, brown or black nacreous shell chunks are prepared and put in place with meticulous care to form these plant basins, which are then polished to add luster to the shells. The plants and flowers look amazing in these basins, but thanks to the careful design of the containers interior, SHELL series products can function as impressive decorative items with no plants as well.