Candance(TM)5 LED 2 Laser Bike Bicycle Cycling Beam Tail Rear Light Safety Warning Lamp Blue for jogging, walking, bicycles, car emergency, horse-riding, road emergency & camping, ETC. 1. 100% Brand new and high quality, The tail light used to improve the security of night riding and cycling entertainment. 2. Two dual light lines on the road send by the laser indicator to keep a safe distance, Laser design, energy saved, highlight led with 7 mode,wide visibility design. 3. 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, Laser mode: Always, flashing 4. Buckle with adjustable lock ring (suitable for any size seatpost diameter), Battery by: 2x AAA battery (not Include), LED and laser can work 9h, and only LED flashing can last 36h. 5. Water resistent, 260 degree wider visibility, Input power:100mw, Seat post :20-36mm, Easy to install, Size: 8cm x 7cm x 3cm - 3.15inch x 2.75inch x 1.18inch.Use for jogging, walking, bicycles, car emergency, horse-riding, road emergency & camping, ETC.