Handy Bike Safety Laser Caution Flashing Tail Light Riding Kit   Features‎:‎ ‎- Fixed by rubber strap buckle‎,‎ easy to install and remove ‎- Ideal for car emergency‎,‎ camping‎,‎ riding‎,‎ etc‎.‎ ‎- 7 kinds of flashing modes to meet your different needs ‎- 2 laser lights around you to ensure your safety ‎- 5 high quality LED lamps‎,‎ bright and longlife ‎- Working time‎:‎ 9 ‎- 36 hours ‎- Power‎:‎ 2 x AAA battery ‎(‎ not included ‎)‎   Mounting Placement‎:‎ Seatpost Power Supply‎:‎ Battery   Package weight‎:‎ 0.096 kg Product Size‎(‎L x W x H‎)‎‎:‎ 7.60 x 6.80 x 3.40 cm / 2.99 x 2.68 x 1.34 inches Package Size‎(‎L x W x H‎)‎‎:‎ 12.10 x 7.00 x 3.50 cm / 4.76 x 2.76 x 1.38 inches Package Contents‎:‎ 1 x Bicycle Laser Tail Light‎,‎ 1 x Bicycle Mount