FRONT: Ultra-compact safety light with integrated lens On/Off switch. Durable machined aluminum construction. Side Visibility lens extends beyond body to provide 180 degrees of visibility. Two replaceable CR2032 batteries power one bright LED. Up to 15 lumens with two output/flash options. Available in seven unique anodized colors. Versatile 2-in-1 Clip-On System straps to bars or clips to loops. REAR: Ultra-compact safety light with integrated lens On/Off switch. Durable machined aluminum construction. Side Visibility lens extends beyond body to provide 180 degrees of visibility. Two replaceable CR2032 batteries power one bright LED. Up to 7 lumens with two output/flash options. Available in seven unique anodized colors. Versatile 2-in-1 Clip-On System straps to bars or clips to loops.