Due to it’s S-shaped profile - giving it the look of an upside down bell - the dance of the Duett ends in a long, decelerated lurch. Bipartite, clinch-gudgeon sized, oiled.

Mader rates their tops as to how difficult they are to spin, using a scale of 1 to 5, 5 being the hardest.

Duett, item no. 206, diameter 45 mm, hard woods, severity 2.