The Famous X Clear Glass Down Stem makes the perfect add-on for any bong! This awesome essential accessory adds an extra level of water filtration to your smoking experience for hits that are as smooth as can be! The precision-cut percolation slits give you more control over your smoke and will allow for bigger and cleaner hits than ever before! This handy little accessory is perfect for bong owners who want a smoother smoking experience. Its quality construction makes cleaning and maintenance a breeze, and with proper care, it will last for years. Its straight, minimalist design features clear glass with the Famous X signature Black Star logo.