The Tenax 10 Piece Universal Coloring kit is the best way to do all of your color matching. This is perfect for use with Polyester Resins, Acrylic Mastic, and stone epoxies. These colors are very concentrated, so a little drop will go a long way. With 10 different colors to mix and match from you can make virtually all the colors of the rainbow. Colors Included: Black, Brown, White, Red, Red Brown, Yellow, Green, Blue, Gray & Buff. This product is VERY concentrated so a little goes a long way. Mix and match to make other colors. These are 2.5 ounce containers with a specifically designed nozzle for small amounts of color per drop. Use on your polyester & epoxy glues. The tenax coloring kit is great for both indoor & outdoor use.