This product is environmentally friendly and non-toxic, and comes with (16) pieces, (1) wooden stick, and (1) mini nail file. It is made from 100% gel polish and can last up to 14 days without the need for a topcoat. To cure, simply use a UV/LED lamp for 60-120 seconds. No glue is required for application and removal, making it easy and sustainable for use on natural nails, acrylic, gel nails, and shellac. Please note that the colors may vary slightly on screen due to lighting and color resolution. The lasting power of these nail wraps depends on the quality of application and how much wear and tear your hands experience.