Tri-color Rainy Day Coffee is a thermal nail polish that transforms according to temperature. A dark grey when cold, this color-changing polish evolves into a light grey and then a brown to beige tone as it warms up. This bold polish color combination polish provides dramatic effect, and it can be used with various application techniques like water marbling to create gorgeous nail artwork. Featuring chrome dust for a gorgeous shimmer in the sun, this transitional polish is ideal for both natural and acrylic nails, and can be layered for more opaque color. Although it dries matte, top our premium polish with a clear coat for a brilliant, high-gloss finish. Our line of thermal polishes are easy to apply, and dry quickly with a smooth finish. As with all of our Parrot Polish products, non-toxic Rainy Day Coffee thermal nail polish is cruelty-free and 10-free.