Black Free Size Tactical ABS Airsoft CS Paintball Security Helmet Adjustment Rear Dial Knob for Head Size adjustment. Available HC 21.25" - 24" (54CM - 62CM ) Size:27.5*25*18cm Weight:Naked 0.65Kg ARC,Ropes,Head-Loc,Earthquake,Velcro,EPPS,OCC-Dial Side Rails w/ Goggle Strap Clips & NVG Shroud, Bungee Retention for NVG,Velcro Panels Allow Fitment of Patches, IFF, Safety Lights, and Nametapes Lightweight But Durable, High Quality Construction for Head Protection. Not Designed to Withstand or Protect Against Real Ammunition. Solely for Airsoft Play CS Paintball