Sigma 10$ bicycle rear brake light

Sigma clever rear brake light for bicycle, only costs 10$ and is easily installed.

Just clip Sigma rear brake light on your rear brake cable and it will alert anyone behind you that you are slowing down.

“Perfect for kids, commuters, and group rides! Fits u-brakes, v-brakes, canti’s, road calipers, mechanical disk brakes…sorry, won’t fit hydraulics!”