The HASTHIP® 12pcs Straw Cleaner Brush Kit is a versatile and practical set designed for thorough cleaning of all types of narrow tubes and straws. Each 8-inch brush features durable nylon bristles that effectively remove residue and buildup from sippy cups, tumblers, water bottles, drinking straws, and pipes without causing damage. The kit includes 12 brushes of varying sizes to fit different diameters, ensuring every straw or tube is spotless. With flexible yet sturdy construction, these brushes make cleaning tight and hard-to-reach areas effortless. Finished in sleek black, this set is perfect for maintaining hygienic and fresh drinkware at home or on the go.