Smokey Blue

2-in-1 Bottle Cleaning Brush and Hidden Straw Brush, Long Handle Water Bottle Brush Cleaner with Replaceable Head for Sports Bottles, Baby Bottles, Mugs, Straws, Smokey Blue. Hidden Straw Cleaning Brush: The straw cleaner brush unscrews from the cap at the base of the handle and can also be used to clean hydration tubes, small components, and other hard-to-reach, tight spaces.