WS2812B RGB Pixel Ring (Adafruit NeoPixel compatible).
You can control them via one wire signal.
Total amount of LEDs: 24
Outer Diameter: 86 mm
Inside Diameter: 72 mm
More information:
github.com/watterott/WS2812-Ring
Product safety information
Manufacturer information:
Watterott electronic
Breitenhölzer Str. 6 , 37327 Leinefelde-Worbis
www.watterott.com