Flash about 24 hours. Function:Water repellent, Shockproof, Safety. Only side & rear warning light about 1 month.
RockBros Bike Helmet With Goggle Visor Lightweight Open Face MTB Helmet 3 Model
ROCKBROS Bike Helmet for Men and Women with Magnetic Goggles and Detachable Visor, Lightweight Breathable Adjustable Cycling Helmet for Mountain and Road Cycling, White Photochromic Lens L
ROCKBROS Bike Helmet Ultralight With Light USB Recharge MTB Bike Helmet 57-62cm
RockBros Bike Helmet EPS Breathable Cycling Helmet Unisex Goggles Helmet
ROCKBROS Kids Bike Helmet with LED Light - For Youth Ages 5-12 Year-Size 54-58cm
ROCKBROS Bike Helmet Magnetic Sun Visor Open Face Goggles Helmet 4 Styles Adjust
