The 1'' ball mount for connection to any B size double socket arms and mounts. The ball mount for gopro is made of high quality rubber material to reduce shock and vibration. The ball base male 1/4"-20 threaded steel stud will connect to any standard female thread found on digital cameras, camcorders, and other devices. This B Size 1" Ball for Insta360 One X2 X One R RS Go 2 accessories Compatible with GoPro HERO 3+ 4 5 6 7 White Silver 8 9 10 Black HERO Max Fusion Session, DJI Osmo Action and XiaoYi etc. Package Includes: Ball mount universal adapters x 1, Long Screw x 1, Adapters for gopro x 1. 1" Ball Mount Adapter for Insta360 One X2, X, One R, RS, GO 2, GoPro Hero, Compatible with RAM Ball Head Mounts B Size Double Socket Arm