This glass on glass water pipe is 18" tall and is known as the "knuckler". Three donut holes are carefully blown into the tube, functioning as an ice catcher, splash guard, and ergonomic finger grip when handling. The top and bottom is trimmed with color. The straight base requires minimal water and allows more of a direct hit. This is a high selling item and a must have for every smoke shop.,,Made in Los Angeles, these glass on glass water pipes are blown for those who want the quality and durability at an affordable price. Made from high-grade clear borosilicate glass and comes with a glass on glass downstem and bowl., • Height: 18", • Diameter: 50mm, • Thickness: 5mm, • Color: Black Trim, • Base: Straight, • Joint: Female 19mm