Universal 25mm to 25mm Dual Ball Adapter Aluminum Alloy Double Ball Compatible with Multiple 25mm Dual Ball Socket Mounting Arms Universal 25mm to 25mm Dual Ball Adapter,Aluminum Alloy Double Ball Compatible with Multiple 25mm Dual Ball Socket Mounting Arms Premium Material: Our ball mount adapter is made of premium aluminum alloy, which is durable, tough, stable, not easy to break and with excellent scratch resistance performance. You can feel confident to use it for a long time. 25mm to 25mm: The diameter of the ball on the two ends is 25mm/1in, which is compatible with any mounts or arms that use a 25mm connection. The total length of the ball mount adapter is 6.8cm/2.67in, long enough for you to install conveniently. Thoughtful Design: The ball mount connector adapters a thread design on its surface, which can help enhance the frictions between the connector and the mount and make the connect part tighter. Therefore, you dont need to worry they will break apart easily after installation. Compatibility: Our ball mount adapter is an ideal choice for you to connect two arms or mounts with 25mm connector end together and perfectly solve your connecting problems. Dimension -25mm ball heads, total length is 68mm _x000D_