Staple
Tube of a double-reed, around which the 2 reed blades are fastened.
Generally made of brass with a diameter of 3-4 mm.
Sachs, Curt: Real-Lexikon der Musikinstrumente: zugleich ein Polyglossar für das gesamte Instrumentengebiet [Berlin, 1913]. Hildesheim, 1964 [facsimile].
Baines, Anthony: Bagpipes [1960]. Oxford, 1973 (revised), p.94.
Sloan, Ray: The smallpipes survival guide. Simonburn, 2001 [sic: 2000], p.30.