A recent addition to the Robert Simmons line, the Sienna is a high-quality synthetic brush that also works well for acrylics, oils, gouache, and ink. A mixture of state-of-the-art synthetic filaments provides a smooth, soft feel and returns to a sharp point or razor edge every time. Handles are kiln-dried birch, lacquer-coated. Ferrules are 22kt-gold plated for a luxurious appearance.