It's darker in inclement weather with this bracelet you can follow... the light of a feather? Birds in the sky have nothing on you. their bones may be light. but YOUR feathers. are too!!!! To turn it on there's no code to crack Just push the little knob on the battery pack Now listen up, show your gumption Press the knob again to get the flashing function! White Feather Blinky Bracelets have two light functions. To turn on simply push in the knob located on the battery pack. Press knob again to turn on the flashing function. The bracelet has a comfortable elastic which makes it one size fits most! Use them as a fun party favor or use them for a bold night on the town. Either way, White Feather Blinky Bracelets are sure to be a hit at your next event. NOTE: Product contains small parts. Not suitable for children under 5 years of age. Diameter (when stretched): 3.5 in, 8.89 cm Bracelet color is White. - LED Colors: 1 Jade, 2 Red, 1 Blue - 2 replaceable AG10 Batteries included and installed.