Stolbik (m)
plural: Stolbikioriginal: столбик, столбики
socket for the insertion of one or more pipes
From столб (stolb [post / column]).
Made of maple (Acer pseudoplatanus) ?
Куликов, Владимир Михайлович [Kulikov, Vladimir Mihajlovič (Spelling in Contents: Vladimir Michaïlovitch Koulikov)]: Волынка - русский народный инструмент (La cornemuse: instrument populaire russe). In: The bagpipes in Europe, 1 (1976), p.62.