This is not your average brush! Stainless Steel ensures that your brush will be there for you for years to come. And the medical grade nylon bristle only adds to the quality of all Glass Dharma has to offer. This cleaning brush has a 3/8" diameter and therefore fits all straws with a diameter of 9.5 mm and bigger (Ice Tea Size, Smoothie Size, and Bubble Tea Size).
An essential item for glass straw users. I use the glass straws to drink tea, which can leave stains but this brush cleaned them right out immediately and easily. Feels like very good quality as well and the fit is perfect.