Collapsible drinking straw is made from premium food-grade stainless steel and medical-grade TPE interior tube material, 100% BPA Free, FDA Approved. Perfect for you to enjoy any cold or hot drink. This collapsible drinking straw is reusable. The length of stainless steel foldable straw can be adjusted according to your needs, fits all kinds of cups or a long tumbler. With soft tips to protect your teeth, these folding drinking straws won't hurt your mouth if you accidentally or subconsciously bite down. A light case for you to put on a key-chain or in your bag. Portable, collapsible and retractable, come with an auto-rebound sliding hard case, very handy to carry while on the go. It also comes with an adjustable cleaning brush, easy to clean the whole straw.