Outer Diameter – 25mm Thickness – 2.5mm Edge – Bevel 90° Frosted Joint Butane Torch Recommended Compatible Pearl Size(s) – 4mm, 6mm, 8mm This equipment is a fitting description for the Built-in Round Bottom with the Thick Bottom Beveled Edge Quartz banger. With an outer wall diameter of 25mm and a solid thickness of 2.5 mm the Honeybee Herb quality is strong with this one. The bucket height is of 45mm making it look different from other equipment.