This handy brush-style glass cleaner removes any debris from most glasses, both on the inside and outside. Ideal for pint glass cleaning, but will work with many other types of glasses. Be careful with extremely bulb type or thin glass. It has a large bristle post for general washing, as well as a smaller post with soft bristles for wine glasses. The Beer Glass Scrubber attatches firmly to the bottom of your sink with high-quality Firm suction cups If washing many glasses at once, put this in a tall container with warm water and PBW (cl25) for a great cleaning station. Dishwasher Safe (on top rack only)