ROCKBROS BICYCLE SMART BRAKE & TAIL LED LIGHT [Saddle and Seatpost Mount] SPORTS FOODS you can fit it easily

you can fit it easily in your backpack or pocket

the brake light illuminates when you brake—giving the ultimate rear light for safer nighttime cycling

Order now and say goodbye to chafing

▲Breathable & Stretchable： One Size Fits Most Men & Women

Energy Gels® provide endurance

ROCKBROS BICYCLE SMART BRAKE & TAIL LED LIGHT [Saddle and Seatpost Mount] SPORTS FOODS you can fit it easilyFor those who love smart tech, our ROCKBROS Bicycle Smart Red LED Brake & Tail Light is the perfect way to illuminate you at night and show other road users you're braking. With an in built sensor, this light comes on when you hit your brakes. It installs to your saddle easily and is made from a tough aluminum alloy. Key Features: Bright red LED light with brake light smart tech The brake light illuminates automatically when you brake Four main light