Features:
1) Replace batteries every 100 hours for maximum brightness
2) Portable - no wires - use it anywhere
3) Unique 3M adhesive is reusable over and over again and can withstand
extreme temperatures (0 - 150°)
4) Diameter is 2 5/8", 7/8" in depth
5) Includes 3 x AAA batteries
6) Push on the centre to turn on and off