This 17 inches unreal bong is perfect for those who are serious about their smoking experience. Made with 5mm thick glass, this bong is durable and long-lasting. The 50mm tube ensures that smoke can flow easily, while the double 8 tree arms perc filters the smoke for a smoother hit. The 18mm bowl allows you to pack more herb for bigger hits. With its sleek design and functional features, this bong is sure to impress.