Height: 18" (45cm) | Stem: 5.5" | Downstem: 19mm | Bowl: 14mm Height: 18" Inches / 450mm Joint Size: 19mm Downstem Diffuser / 14mm Bowl Stem Length: 5.5" Inches / 14cm Full-Piece Platinum Banded Beaker. This fantastic looking beaker is guaranteed to make a great impression.