MARTIN/F.WEBER-Bob Ross Gesso.Bob Ross products are manufactured with care; from the finest materials.They are individually evaluated for quality and performance so novices and experienced painters alike can achieve optimum results in the wet-on-wet painting technique.Bob Ross Gesso contains pure pigments formulated in a 100% acrylic polymer emulsion which when dry produces a smooth; flexible; flat finish on artwork surfaces.It is ideal for the Bob Ross painting techniques with oil colours as well as other art media including acrylics; tempera; watercolours; ink; pencil; and more! This package contains one 473mL bottle of Gesso.Available in either White or Black: each sold separately.Conforms to ASTM D4236.Made in USA.Dimensions:.Height: 7.25.Width: 2.75.Depth: 2.75