This Harmony Watercolor Spiral-Bound Pad is especially suited for wet painting techniques such as watercolor, glazing, mixed media, gouache, tempera and acrylic. Surface sizing increases the durability and resistance of the paper, permitting corrections while your project is still wet; the strength of this paper also means that masking fluids or masking tape can be used and removed residue free, without damaging your artwork.Details:Natural white paperAvailable in multiple sizes140 lb /300gsm12 sheets per padRoughSpiral bound Light resistant and eraser resistant paperAcid free