Veloline Cycling Size Banana USB Illumination Tail Fits Head Sizes 55cm Helmet, M, Yellow, Approx. 250g, Charging, 3-Pattern Light, Approx. - 58cm,

Lightweight design: M size: approx. 250g / L size: approx. 270g A USB rechargeable tail light is installed at the rear of the helmet. Two lighting patterns are available to suit different riding conditions. Two lighting patterns: ● All lights on / ● All lights flashing ~ Cyclic flashing (light rotates) 15 ventilation holes ensure breathability inside the helmet, preventing it from getting stuffy. M size: Adjustable range 55cm-58cm / L size: Adjustable range 58cm-61cm Size can be adjusted using the adjustment dial on the back.