ROCKBROS Cycling Safety Helmet With Warning Lights USB-C Rechargeable Color:Red HUMANIZATION DESIGN: Reasonable size: only

HUMANIZATION DESIGN: Reasonable size: only 6mm width

this one works with both front and rear wheels

Led Bead: Heart rate alarm more obvious

Model: K3462F-BK

ROCKBROS Cycling Safety Helmet With Warning Lights USB-C Rechargeable Color:Red HUMANIZATION DESIGN: Reasonable size: only360 Quad Light System: This helmet features a powerful front headlight, dual side warning lights, and a high visibility rear taillight, providing complete 360 coverage. Hands Free Lighting: No more riding in the dark. The front headlight follows your head movement, casting light exactly where you look. Perfect for navigating dark suburban streets or setting up camp after dark. Type C Charging & Long Battery Life: Powered by a high capacity 1800mAh