These highly intense, permanent colors have a consistency similar to heavy cream. They are produced from lightfast pigments, not dyes. No fillers or extenders are added. Fluid Acrylics contain high pigment levels suspended in an acrylic polymer vehicle. Golden Fluid Acrylics in 4 Ounce Bottles contain 4 fluid ounces of Golden Professional grade fluid acrylics in a convenient flip top bottle.