The term 'annulus' is mathematical--the region between two concentric circles. This design lives in that particular landscape of patterns, but also in the space of implied circles and rhombic motifs. This particular design is sturdy, but quite flexible, so care must be taken when moving it. However, simple tightening will keep it stable for many years to come.
 
Diameter: 32in / 81.5cm
Color: Magenta
Primary Elements:1x6 plate [3666]
Piece count: 1394
Layers: 4