HIC's Bamboo Drinking Straw Cleaning Brush for cleaning all reusable straws including long cocktail straws short tumbler straws even sports bottle straws and so much more. Scrubs the inside clean but won't scratch delicate surfaces. A wider span of bristles (about 1-inch) cleans a larger surface faster while the longer handle accesses those hard-to-reach areas easily with added leverage for vigorous scrubbing. Economical reusable and wear-and-tear resistant for more cleanings with less waste. Hangs for easy storage. Made from natural bamboo with recycled plastic bristles and sponge tips it's lightweight strong and less absorbent than wood. Safe for use on nonstick surfaces. Although bamboo is technically a grass its tensile strength is comparable to that of steel making it extremely strong and durable. It regenerates through a vast root system without need of replanting and boasts a record-breaking growth rate that surpasses any other known plant. For these reasons bamboo is considered among the world's greatest renewable resources and the alternative used over traditional materials in products for more sustainable living. Rinse clean between uses and air dry.