●Suitable for screw clamps of T-MAX series motorcycle helmet Bluetooth walkie-talkies ●It is specially designed for Bluetooth walkie-talkies and some motorcyclists backups. It is suitable for any full helmet, half helmet, flip helmet, most of the open helmets that can cover the ears. ●The package contains only 1 screw clip, no other parts ●The design is sturdy and durable, waterproof and sunscreen, suitable for all kinds of weather and environment, not easy to fall off. ●This is a backup, you no longer need to replace the screw clip of this helmet with another