Feature 1360 Degree Rotation: The multi angle rotation helmet rail adapter installed on the headset can achieve 360 degree rotation of the headset, making it easy to use. 2Configure Two Types of Adapters: Two types of adapters can be configured for both for OPS Corearc specification and for Team Wendy LO specification. 3Large Adjustment Range: The 360 degree rotation headset helmet guide adapter has a large adjustment range and can be folded outward to fully dissipate heat from the ears when not in use 4Extendable Length: The 360 degree rotation headset helmet guide adapter is adjustable in length, allowing users to adjust to a comfortable position when wearing headsets. 5ABS Material: Multi angle rotation helmet rail adapter is selected from high strength ABS material, has good impact resistance and durability.Item Type: Multi Angle Rotation Helmet Rail AdapterProduct Material: ABSWeight: Approx. 200g / 7.1oz .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List2 x Helmet Connecting Arm2 x Rubber Ring1 x Hex Wrench1 x Cross Screwdriver4 x Screw2 x Nut2 x Helmet Adapter2 x Adapter Accessories