This clarinet-type tubular brass body is obtained by the technique of spinning on a lathe. It allows the construction of a hollow luminaire body for the passage of threaded tubes with a length of 149mm and a base diameter of 37mm. 
Several other models are available, see below.

Product description :
 Base diameter: 37mm
 Head diameter: 19mm
Height: 149mm
Hole diameter: 10 mm
Thickness: 1mm
 Composition: solid brass
Sold individually