Beautiful, safe, water-based and non-toxic. Best selling assortment of our 10 most popular colors. Bring your stained glass projects to life! do not shake before use to avoid bubbles. 8-oz. Plastic bottles in 10 fun colors: red, yellow, Blue, green, orange, Purple, pink, black, Brown, and white. Protect skin, clothing, and work surfaces as this concentrate color may stain.