The 1 inch ball mount is compatible with RAM & BRCOVAN B size 1 inch ball pan arms. Also works for other devices with 1 inch swivel ball mounting pattern. Main body made of 6061-T6 aluminum alloy material, CNC integrated molding, smooth surface and solid body. TPU overmolded ball head, dampens shock and vibration, with anti-slip performance. So that your device can be securely attached to the ball head.