Features:
There are bright COB LED lights.
The bottom of the invisible button control switch, the back have clip,can be caught in the bike, belt or shoulder or backpack, school bags and other belongings on a security warning to ensure personal safety.
Light Color: Red, Blue, White
Modes: Steady, Flash, Slow flash
Material: Plastic
Size: 6cm x 3cm x 2cm
Weight: 25g
Switch Type: Button
Power Supply: Battery (Included)

Package Content:
1 X LED Keychain