Size:
       S : Width 2.5cm, maximum 43cm, stretching the scope of 8cm.          
       M:Width 2.5cm, maximum 48cm, stretching the scope of 8cm.            
       L : Width 2.5cm, maximum 52cm, stretching the scope of 8cm.      
       XL:Width 2.5cm, maximum 60cm, stretching the scope of 8cm.

Color: red, yellow, blue, green, orange.
Flashing modes: long light. Flash. Slow flash (via switch control).

The product can remove waterproof, when cleaning electronic parts, apply to the darkness of the environment or night walking the dog, outdoor and love dandle movement, through the ultra bright light up the warning role, optical fiber, showing personality, fashion.