The river rock basin is unique in size. No two pieces are alike. River stone is by far the heaviest and strongest material in our portfolio of natural stone basins. Because Riverstone washbasins are hand-carved from natural stone, each washbasin has a unique shape and size. Riverstone's washbasins are the go-to for natural rustic themed projects at very economical prices. Our stone basins are sourced from the spiritual sanctuary of Bali. In our handmade workshop in Bali, the process of making each basin begins with a single piece of natural stone handcrafted by skilled artisans using original sculptural techniques to create a truly unique washbasin, each Blocks all have unique material properties.