1、APPLICABLE SIZE: Both ends of the extension arm can be clamped onto any 1inch/25mm ball joint, giving you the possible to mix and match unique device mounts to meet your work and life needs. 2、EXTENDED LENGTH: Can be attached to other mounting accessories such as suction cups, clamps, and drilling bases to extend the length of reachable equipment and rotate it flexibly at an angle to fit different usage scenarios. 3、ALUMINUM ALLOY: The metal double sleeve arm is made of aluminum alloy, which has a long service life in various harsh outdoor high shock and high vibration environments. 4、FLEXIBLE DESIGN: The double socket arm can be rotated and adjusted to different angles, allowing for easy positioning and viewing of your device in various settings. 5、SECURE ATTACHMENT: This is long arm with total length of 17cm/6.7in. The double socket arm ensures a stable and secure attachment of your device, providing peace of mind during use. Item Type: Double Socket Arm Material: Aluminum Alloy Length: Approx. 17cm/6.7in 1 x Double Socket Arm