1) This section baton built - in LED lamp with low power consumption, brightness, good performance, the blink rate is about 2 times / sec, water-resistant 2) Magnetic tail for easy metal surface mounting 3) Perfect for signaling and marking danger zones 4) Visiable 200 meters away in the darkness 5) Flashing mode for emergency 6) Length: 29.5cm 7) Battery: 3 x AAA battery (not included)

http://olla.gr/safety-traffic-3-mode-control-red-led-baton-with-flashlight-length-29.5cm-red/