Brand-X have partnered with South Korean lighting specialist LightSKIN to offer you a seatpost with a difference. Switch the light on and change modes with one short press of the 1st LED. Press and hold the LED to switch the light off. The post has 3 light modes and kicks out 25 Lumens offering eyecatching visibility as the nights draw in. Offering 50 hours battery life in continuous light mode and 100 hours in flashing the Brand-X LightSKIN Seatpost is a workhorse and a minimilists dream. Lightskin have geniune credibility in this area and won the Prestigious Red Dot design award with this very product. Install the batteries at the base of the post, attach your saddle with the single bolt seat rail clamp and ride in style. Ideal for commuters and for those of us that that forget our lights or fear them being stolen.