Put one on and your finger sings. I'm talking about blinking flashing huge gem rings. Wear them when you don't want to be mild. The fast flashing lights are insanely wild. Huge Gem Rings are always prized. They have a grey open band that can't be resized. One size fits most. The plastic top of the ring is Clear with White LEDS. Dimensions: Height: 1.50 in. , 3.81 cm. Diameter: 1.87 in. , 8.88 cm. LED Colors: 3 White Batteries: Batteries for this item are NOT replaceable.