This Full-Piece Pyramid beaker has a very unique pyramid shaped base. This gives it a cool aesthetic while still allowing it to work efficiently like the typical beaker base. It is 18? tall and has an ice catch to allow for smoother inhalation. Height: 18 Inches / 450mm Joint Size: 19mm Downstem / 14mm Bowl Stem Length: 6.25 Inches / 16cm Tube Thickness: 7mm Includes: (1) H055 - Pyramid (1) YX10 – 6.25" / 16cm Downstem (1) YX12P - 14mm Cone Bowl Features: Extra thick bottom and corners Ice catch