ened ▁at ▁intervals ▁along ▁the ▁sh aft . ▁These ▁are ▁commonly ▁be er - b ott le ▁to ps ▁with ▁a ▁ 1 ▁in ch ▁was her ▁in ▁between ▁the ▁to ps ▁and ▁the ▁sh aft ▁to ▁enh ance ▁the ▁quality ▁of ▁the ▁sound . ▁Origin ally ▁the ▁end ▁of ▁the ▁sh aft ▁is ▁believed ▁to ▁have ▁been ▁covered ▁with ▁a ▁rag ▁to ▁give ▁some ▁protection ▁to ▁the ▁floor . ▁A ▁boot ▁that ▁might ▁be ▁attached ▁to ▁the ▁base ▁of ▁the ▁pole ▁is ▁a ▁recent ▁' Z ob ▁St ick ' ▁addition . ▁▁ ▁When ▁played ▁on ▁a ▁wooden ▁floor ▁( common ▁in ▁ale - h ouses ), ▁the ▁sound ▁produced ▁is ▁a ▁combination ▁of ▁a ▁bass ▁drum ▁and ▁tamb our ine . ▁It ▁can ▁also ▁be ▁played ▁with ▁an ▁additional ▁small ▁not ched ▁or ▁ser r ated ▁stick ▁held ▁in ▁the ▁other ▁hand , ▁allowing ▁it ▁to ▁not ▁only ▁be ▁sh aken ▁or ▁ham mer ed ▁onto ▁the ▁ground , ▁but ▁also ▁" bow ed " ▁to ▁produce ▁a ▁combined ▁clicking ▁and ▁r att ling ▁sound . ▁ ▁In ▁Australia , ▁this ▁instrument ▁constructed ▁with ▁be er - b ott le ▁to ps ▁is ▁known ▁as ▁a ▁L ager phone , ▁a ▁variation ▁of ▁the ▁traditional ▁ab original ▁instrument ▁using ▁shell s . ▁The ▁same ▁name ▁and ▁construction ▁is ▁found ▁in ▁New ▁Zealand . ▁ ▁In ▁New found land , ▁it ▁is ▁referred ▁to ▁as ▁an ▁" U gly ▁stick ". ▁In ▁the ▁Dutch ▁province ▁F ries land ▁this ▁type ▁of ▁instrument