This Cup Cleaner for Sink Scrub Brush makes it so much easier to clean mugs and other drinkware! You can install it securely on your sink too! This cleaning tool has a brush on the side and the main brush which cleans glasses all around. No need for you to struggle in reaching the inside of the glass as you try to clean the bottom. Simply insert the cup you wish to clean into this tool and rotate it to scrub all sides. It even has three suction cups so mounting it on your sink is easy.