The Fret ring was originally designed as a one-of-a-kind tactile calming tool for a child's nerves. After numerous requests from grown-ups, the ring is now available for all ages. Available in: -Silver and moonstone -Silver and pink moonstone Band Width: 3/16" (4.7mm) Moonstone Drop Measurements: 3/8" x 1/2" (9.5mm x 12.7mm) Moonstone Stone: 8 x 6mm Handmade in NYC