1This helmet locking system is made of quality materials, wear-resistant and durable 2Easy to use and adjust to fit your helmet 3Comes with fittings for easy attachment 4Useful accessory for airsoft games and many other uses 5100% brand new and good quality Features:This helmet locking system is made of quality materials, wear-resistant and durable. Easy to use and adjust to fit your helmet. Comes with fittings for easy attachment. Useful accessory for airsoft games and many other uses. 100% brand new and good quality.Specification:Material: PlasticColor Options: Black; GreenSuitable for Fast helmetSize: Approx. 20 x 19 x 4.5cm / 7.87 x 7.48 x 1.77inWeight: Approx. 335-340gPackage List:1 x Helmet Locking System4 x Screws4 x Nuts