Liquitex Professional Acrylic INK! 5.1-oz Jar, Transparent Burnt Umber Opacity: Transparent / Lightfast: I / Color code: 130 Super Fluid; Highly pigmented, extremely fluid with satin finish Includes 5.1-oz / 150ml jar of ink Intermixable with Liquitex Professional Acrylic Paint Colors and Mediums. Conforms to ASTM D4236; Safe for educational use