Del Sol's "Blue Night" Color-Changing Nail Polish changes from a glacial-blue indoors to deep sea blue shade when exposed to sunlight. Its unique and high-quality formulation provides long-lasting wear and a flawless finish that will leave your nails looking fantastic. The color magic will unfold right before your eyes as you step into the sun and watch your nails transform with Del Sol's "Blue Night" Color-Changing Nail Polish.