LW Bicycle Bike Cycling Rear Tail Laser LED Lights: 2 Laser Beam and 5 LED Safety LASER LANE RED LED REAR TAIL LIGHT FOR BIKES, BICYCLES TWO LASER BEAMS Launchers with two flashing patterns (Constant and blinking) Five high light LED Lights with three flashing modes 260 degree Wide visibility, Water Proof Size: 3.2" x 2.0" x 1.8"; Weight: 2.2 Oz; Easy installations (Screwdriver needed)