TOOGOO(R) Bicycle 9 Red LED Flashlight 6 Modes Rear Lamp w Bracket Product Name : Rear Light Fit for : Bike / Bicycle LED : 9 Red Light LED Modes : 6 Modes;Power : 2 x AAA Battery ( not included) Rear Light Size : 7.2 x 4.3 x 3cm/ 2.8" x 1.7" x 1.2" (L*W*T);Bracket Hole Dia : 3cm/ 1.2"