Manufactured from the highest quality resins, these dripless containers are specially designed for storage of paints and mediums of all kinds including solvents such as turpentine, which can break down other containers. Cups fit into the Sta-Wet Painter's Pal cup holder. 10 cups per package. 1-1/2" in diameter and 3/4" deep. Capacity per cup is 1/2 oz.