Flip flop paint contains a special pigment that is shaped like a pyramid. On one face of the pigment structure is Color A on the side adjacent to Color A is Color B. When the pigment is mixed as a paint and applied to an object it appears as Color A, when the object is tilted or moved the color changes because you are viewing a different facet of the pyramid. If it sprayed on a round or curved object, little to no movement is needed to complete the color shift. To utilize this type of pigment it is usually applied over a dark basecoat, I enjoy using it applied over a white basecoat as it makes for an excellent scale pattern that is not very noticiable until the bait is moved