Coir Bristles for Strong Scrubs on Your Straw's Inside Suitable for Larger Smoothie Metal Straws No Chemical Processing. All Natural, Antimicrobial Coir Bristles and Stainless Steel Wire Handle and Hence Food Safe It is a Great Choice for you to make Cleaning Work Easier. Good Tools for you to Clean Spout, Teapot, Bottle and so on.Palmera presents you the Straw Cleaning Coir Fiber Brush which is made from all natural processes and no chemical processing. All Natural, antimicrobial coir bristles and Stainless-steel wire handle and hence food Safe.