[BPA freestraws are non-toxic and will not cause any health problems. Beautifully crafted strawscan be used for drinking virtually anything from hot to cold drinks smoothies to shakes lemonade protein shakes cocktails hot chocolate & more! Simply rinse them out after every use or use cleaning brush these brushes are long enough to clean the whole straw and can get rid of any accumulated stain . Package include 6pcs 9inch Transparent Straight straws (230mm * 10mm ) 2pcs Cleaning Brushes (200mm) ZYTC brand products guarantee quality. 30 days money back guarantee if not 100% satisfied.]