1 Pair Tactic Helmet Side Guide Rails Paintball Shooting Fast Helmet ARC Guide Rail Adapter Accessories for HL31 HL32 Helmets Product Specifications: Name: Tactical Helmet Guide Rail Colors: black, tan, green, grey Size: 18.5*4*9cm Weight: about 0.14kg Suitable for : HL-31 & HL-32 helmet Features: Material: This Tactical Helmet Rail Mount is constructed of good quality material ABS, solid and durable. This Rail Mount Helmet Kit is used for HL-31 and HL-32 helmet. Including screws and nuts, it is easy to install onto helmet. It can be firmly fixed on your helmet, not easy to drop.providing much convenience. With this Helmet Side Rail, you can attach lights, lasers, cameras or other devices to helmet by using standard arc rail dovetail adapter (not included). Package include: 2 pcs * helmet guide rails