Features:
Suitable for dark environment or night activities, parties, or outdoor sports;
Concise design with LED warning function at night;
Can be used both at night or in daytime;

Specifications:
Material: cotton
Cap color: black
Light color: blue
Size: 360 x 200 x 125mm/14.2 x 7.87 x 4.92"
Weight: 67g

Package Content:
1 x Cap
2 x CR2016 Button Cells