Clear acrylic ring with magenta, sunny yellow, and green-turquoise stripes that distort and blend when turned (see pics) and illuminate in sunshine.

The face of the ring is a rectangle with angled facets at opposite corners.

Excellent vintage condition with just some light scuffs, commensurate with age and use.

Measures approximately: 19mm internal diameter (approximate US size 9), 21 x 16mm face, 30mm total length (back of shank to front of face).