Features:<br>100% Brand new and high quality.<br>The tail light used to improve the security of night riding and cycling entertainment.<br>Two dual light lines on the road send by the laser indicator to keep a safe distance.<br>Laser design, energy saved, highlight led with 7 mode,wide visibility design.<br>7 Mode: Always, slow flash, flash, from left to right, from right to left, from left to right quick flash, left to right then right to left<br>Laser mode: Always, flashing<br>Buckle with adjustable lock ring (suitable for any size seatpost diameter)<br>Battery by: 2x AAA battery (Included).<br>LED and laser can work 9h, and only LED flashing can last 36h.<br>Water resistent<br>260 degree wider visibility.<br>Input power:100mw<br>Seat post :20-36mm<br>Easy to install .<br>Size: 8cm x 7cm x 3cm<br><br>Package Included:<br>1 x Bicycle Tail Light<br>1 x Bicycle mount<br><br>All items will be shipped within 3 days after we received the cleared payment notifications except for weekend or public holiday. This is because all Courier Company or POS never do any pick up during this period.