This product contains 20 pieces, a wooden stick, and a mini nail file. It is made with 100% gel polish and can last for 14 days without the need for a topcoat. Simply use a UV/LED lamp to cure for 60-120 seconds. No glue is required, making it easy to apply and remove. It is sustainable on natural nails, acrylic, gel nails, and shellac. Please note that colors may appear different due to lighting and color resolution. The lasting power of the nail strips depends on the application and how rough you are on your hands.