Features: Simple elegant,they are easy to pair with just about any outfit. Glowing in the dark requires absorbing the light source at the light source. Ring with special design upgrade your personal charm,catching others eyes. Great gift for your family or beloved one,as Christmas present,birthday gifts,anniversary, etc. Suitable for men, women, teenagers, children, boys and girls. Package Includes: 1x Luminous Glow Ring Specifications: Material: Plastic & Resin American size: No.7 Inner diameter: 17.3mm/0.7in Color: purple/green/yellow/orange/blue/red note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.