Cloud Rainbow.303 is a luxurious electric silver blue polish with a satin finish. Note that this polish colorshifts depending on the light and angle between a gray silver blue and more electric blue. This polish is opaque in 3 coats. A base coat is always recommended to avoid any nail staining. A gloss topcoat is recommended. This polish is 10-free. Please store this polish out of direct sunlight, in a cool, dark, dry location for best longevity. The product color may be slightly different in person due to your computer monitor settings and lighting elements. PI Colors Luxury Nail Lacquers are custom batches of handmade nail polish colors with a variety of effects as described in each product description. Batches are limited in availability to what is in stock. For polishes with color changing effects, we recommend using them within 1 yr of purchase to experience the effects at their best. Please note that we do not offer cancellations on orders, exchanges or returns due to the personal nature of these products.