Chrome Flakies
The 'chrome' in the name refers both to a metallic shine and the special material they are made of, unlike the term 'multichrome' when it refers to other colorshifting pigments.
Some nail polishes in this collection are also linear holographic. Holographic - forming a full rainbow all at once (a rainbow 'arc' is formed). This is in contrast to multichrome/colorshifting - one color becomes another if you turn your nails in another direction.