The ultimate bong has arrived! The ROOR Glass Bong Black, straight outta’ Germany, is a high-quality product, perfect for heavy toking adventures. The bong is comprised of 5mm thick borosilicate glass. It’s 45 cm tall, the perfect length for a smooth toke. The 3-point glass screen, together with the down-tube, 14.5mm in diameter, makes this bong ready for punching some cones.