Ideal for night bike rides, This 2-piece bicycle LED lights Set features red and transparent lights for the front and back of bikes. Each light has three super bright LED bulbs and reflective panels to stay safely seen. Lights have 3 light settings and easily attach to bike frames with included hardware. Measures approximately 2. 75" x 1. 75". Each light requires 2 'AA' Batteries (not included). Comes packaged in a clam shell.