FBK-1 Shell: PC / ABS Visor : Sclerous PC material , scratch proof, customer can order capability freely. Visor style flat / convex shape Visor thickness: 2~ 3mm Color : Black/ Green/ White/ Customization Size: L/ M/ S Adjustable L: 54~ 56 cm M: 56~ 58 cm S: 58~ 60 cm Chip strap: Rubber Neck protector: Artificial lether.fire proof Packing: 9pcs/ CTN Package : 82* 82.5* 35cm Weight: less than 1.60kg Standard: GA294-2001 The supply ability: 3000pcs a week