Brand Name: SMART4U
Season: Universal
Age: >6 Years
Origin: CN(Origin)
Applicable People: unisex
Model Number: SH50L
Head Circumference: 55-57cm
Material: Carbon Fiber
Style: Portable
size: M, L
M: 21.26-22.83 inch
L: 22.44-24.02 inch
Color: Black, Blue, Pink, White
Feature: with back lamp
Lamp type: Light-sensitive Warning Light
type 2: Brake warning light
type 3: Magnetic USB charging
waterproof: IPX4
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