Help save the environment by using this Stainless Steel Straw with Bottle Opener. Made of high quality 304 stainless steel for health and environmental protection, this collapsible straw is durable and versatile. Modern production techniques are used for thermal insulation and heat transfer. It has a unique, beautiful, elegant, and noble style that is attractive and edgy. It is non-flammable, non-fade, and easy to clean. When cleaning the straw, you may use a cleaning brush under running water.