High-quality double-sleeve arm built for fast installation and a secure hold Key benefits Fast install and removal: double-sleeve design lets you mount or swap devices quickly without tools. Secure connection: double ferrule ends clamp a 1" ball base tightly to reduce unwanted movement. Durable construction: alloy case and alloy button provide strength and long service life. Easy, reliable adjustment: tighten the ball brackets at the ends to lock the arm in place and maintain stability. Features & specifications Function: double sleeve arm for mounting applications requiring a 1" ball base. Compatibility: fits standard 1" ball bases. Material: alloy case and alloy button for durability. Connection: double ferrule ends designed for a firm clamp on 1" ball mount. Installation: designed for quick installation and removal; always tighten ball brackets before use. How to use Place the double ferrule ends over the 1" ball base. Tighten the ball brackets at the ends until the arm is secure. Test the connection before regular use and re-tighten as needed to ensure continued stability. Practical use scenarios Vehicle mounting: attach navigation, camera, or phone holders to a dash or windshield base for quick on/off access. Outdoor gear and marine use: mount instruments or accessories to a 1" ball base where a dependable clamp and corrosion-resistant alloy parts are required. Photography and video rigs: quickly reposition cameras or monitors on a 1" ball mount and lock them in place for steady shots. Safety and maintenance Always test the tightened ball brackets before relying on the arm to support equipment. Periodically re-check and re-tighten brackets after heavy use or transport. This double-sleeve arm offers a straightforward, durable solution when you need a fast, secure connection to a 1" ball base.