4oz bottle of yellowing remover!! This stuff goes Hard! Stronger than Salon care 40, I promise! Can be used for de-oxidizing yellowed plastics out on articles such as yellowing soles. It will also remove hazing from products, like car head lights. Uses with the sun or UV light to activate, additional instructions will be sent with product! Make the soles of your sneakers look new again!! PRICE IS FIRM more than Welcome to message me with any questions about this.