Blockx Oil Paints are still made the traditional way on 3-roll stone mills & use the highest possible pigment concentration. We offer great sale prices! Blockx Oils have been a perennial best seller with the Italian Art Store for the past 20 years. All colors are ground in poppyseed oil. These Belgian oils are of the absolute highest quality. The Blockx family continues to produce these professional quality paints as it has for generations. Many well-known painters have used Blockx: Magritte, Signac, Dali etc. Blockx oils can be mixed with other brands.