HDE (&trade;) Rotating Mini Display Stand - Solar Powered Completely solar powered - no batteries to replace, ever! Dimensions: 10 x 10 x 4.3cm (3.9 x 3.9 x 1.6in) Also works under fluorescent lighting Use to display small items weighing less than ~8 oz/.22 kilo/.5 lb Diameter of display surface: 8cm (3.14")