4579 Features: -Photo emulsion. -Makes fine line drawings, computer generated images various hand and commercial lettering and photographic half tone positives. -Quart of photo emulsion must be mixed with diazo sensitizer. -Made in USA. -Manufacturer provides 3 year shelf life when unmixed. -Capacity: 26.4 Ounce. Country of Manufacture: -United States. Generic Specifications: -Sensitizer bottle sized to fill 0.75 with cold water and mix well. Dimensions: Overall Height - Top to Bottom: -6.75". Overall Width - Side to Side: -3.75". Overall Depth - Front to Back: -3.75". Overall Product Weight: -1.9 lbs.