Kodak Liquid Retouching Color Set. Each bottle has seen some use but more than half full. One bottle has stopper bulb in poor condition but contents are still liquid but less than half full. I usually put a couple of drops in an artists palette and let them dry since the colors are concentrated. Just use a moistened brush to apply. Colors can be mixed, best to use a piece of glass on a white sheet for visibility and use a moistened brush to grab some of the dried color and mix on the glass sheet. This set dates to about 1990 - 1994 as best I can recall. Includes everything shown, 8 colors plus neutral.