Light Color
red, blue, yellow , green, orange , colorful , pink, white
Battery
2pcs CR2032(included)
Battery Life
60-80 hours, normal 2-3 months ; battery can be replaceable
S Size
length 34-42cm, width 2.5cm
M Size
length 37-49cm, width 2.5cm
L Size
length 40-54cm, width 2.5cm
XL Size
length 42-59cm, width 2.5cm