Outdoor Adjustable Helmet Liner Head Locking System Headset Accessory (Black)

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. 100percent brand new and good quality. Specification: Material: Plastic Suitable for Fast helmet Size: Approx. 20 x 19 x 4.5cm 7.87 x 7.48 x 1.77in Weight: Approx. 335 340g Package List: 1 x Helmet Locking System 4 x Screws 4 x Nuts .