ATAirsoft PJ Type Tactical Fast Helmet Low Price Version Black NOT suitable for big head!!!!! For Hat Size: 59 or below  ( Internal width: 6.69" (17cm); Internal length: 8.66" (22cm) ). Weight: 550g ***Please check the image on the left side Internal width: 17cm Internal length: 22cm (For Nor-Prime Order )Ship from Hong Kong China. Standard Shipping: 8-15 days Please measure your head before make an order