Specifications: 
 
Range of use: Competition/ Road/ Mountain/ Pulley
Material Quality: PC Shell+EPS Foam Material
Color: Carbon Black
Range of Use: Bicycles/ Electric Cars/ Motorcycles, Etc.
Passed CE/CPSC Certification
Size: About 18*32CM
Weight: M(245±10G)/ L(255±10G)
Head Circumference: M(52-57CM)/ L(57-61CM)