This down stem is a standard part for glass on glass water pipes. Affordable and made from high quality glass, these diffused down stems are a must have for every smoke shop. ,,*All measurements are made from the bottom of the joint to the end of the down stem.* , • Length: 3", • Joint Size: 19mm, • Bowl Joint: 14mm, • Material: Glass, • Style: Diffused, • Type: Downstem, • Colour: Clear, • colour: Clear