This product is made of 100% gel polish and is both non-toxic and eco-friendly. Each pack includes 20 pieces, a wooden stick, and a mini nail file for easy application. No topcoat or glue is needed, and it can last up to 14 days with just 60-120 seconds of curing time under a UV/LED lamp. It is suitable for natural nails, acrylic, gel nails, and shellac. Please note that colors may appear differently on screen due to lighting and color resolution. The lasting power depends on the application and how much wear and tear your hands experience. Trust in this sustainable and effortless solution for perfect nails.