Extend the life of your reusable stainless steel straws when you use this slim brush for a thorough cleaning. Simply brush the inside of your straws with mild soap and water immediately after use, and they are ready to use and reuse! Stainless steel handle. Nylon bristles. BPA-free, phthalate-free and lead-free. Dishwasher safe, or hand wash and hang on loop to air dry.