These silk sponges are famous for their high absorbency and tiny pores. Their unique characteristics make them the preferred choice of watercolor artists. Use with acrylics, oil, watercolour and fabric paints or dyes. Ideal for sponge painting, faux finishes, tile, staining stippling pottery and ceramics. Clean sponge under running water until water runs clear then allow to air dry. Dimension 4 cm.