Product Name: Ventilation Hard Hat, Construction Protective Working PE Knob Safety Helmet Model NO.: 503-C knob Color: Optional Wear Mode: Knob Type Hoop Size: 57?60CM Application: Petroleum, Construction, metallurgy, Electric Power Industry, Transportation Material: PE Type: T Type Net Cap Weight: 290g Belt Weight: 118g Total Weight: 408g MOQ: 300 PCS Features: Anti-Impact Transport Package: 50 PCS/Box Specification: All sizes are available Origin: China Product Description DescriptionNameVentilation Knob Safety HelmetMaterialPEPacking50 pcs/boxNet Cap Weight290gBelt Weight118gTotal Weight408gColorRed,White,Blue,YellowMOQ300pcsApplicationIndustry,construction,mining,electrical work etcFeatureComfort and with good bear with impactProvide best head protectionOffers impact protection while holding the impact absorbing suspension in placeLight weight,durable materialDetails TransportationFAQ:1.Q:Are you a factory or trading company? A:We are a factory.2.Q:How long is the lead time of orders? A:The delivery date is determined according to the order status.3.Q:What is the payment term? A:T/T is used more,please contact us for details.4.Q:Can you send me samples? A:Yes. But you need to pay for the freight.