Features:

Each LED light includes 5pcs SMD LED on the PCBA board, bright.
3 different colors for different purposes,
3 lighting Modes [Steady, Flash, and Strobe]
It's suitable for outdoor use, it is widely used for different boats, pontoon, kayak, bike, dog collar, stroller, runner, etc [Warning: it couldn't be soaked in water]
The LED light's back is with a clip, which could easily attach to a flat belt.With these extra elastic straps, you can easily fix the lights around poles or tubes, on a bike for night cycling, on your hand or leg for night running.

Specification:

Colour:Red,Green,White,Orange,Blue
Material:PC+Plastic
Size:5.5 x 3 x 1.8 cm/2.17x1.18x0.71 inch

Package Contents:

2Pcs or 4Pcs Lights
2Pcs or 4Pcs Buckle straps
2Pcs or 4Pcs screwdrivers