10PCS Light Up Glow in the Dark Bracelets

Just bent the bracelet lightly, the inner liquid will be immediately mixed and then instantly issued fluorescence, which can continue to glow super bright for 8 - 10 hours.
Features
Easy to use, just bent the bracelet lightly, it will glow in.
They don't need electricity or battery, are non-toxic products.
They are not radioactive and they are not flammable.
Wide usage, concerts, birthdays and other occasions, lighting and decoration.
Random color ranges between Blue, Green, Yellow, Orange, and Pink.
Specifications
Material Plastic tube
Color Random
Single Size 5 x 200 mm
Package Contents 10 x PCS Glow Bracelets