1Dual Ball Head: Consists of 2pcs 1 or 4 inch screw ball heads and 1 locking clamp. The ball heads can rotate 360 degree, allowing for free adjustment of various shooting angles, making it an ideal choice for filmmakers and photographers to bring their creative ideas to life. 2Wide Compatibility: One end can be mounted on the side 1 or 4in screw hole of a tripod, while the other end can be expanded to be compatible with DSLR cameras, action cameras, monitors, LED lights, flashlights, suction cup mounts, camera cages, or any other devices with a 1 or 4in threaded hole. 3Stable and Anti Slip: The ball head features a spiral groove design and a non slip rubber pad, protecting the equipment from scratches and ensuring stability. The straight locking knob provides strong locking force and excellent load bearing capacity. 4Compact and Portable: Compact and space saving, easy to carry and transport. You can easily pack it in your camera bag or backpack, making it a convenient tool for on the go shooting. 5Durable Aluminum Alloy Material: Made of aluminum alloy with accuracy CNC machining, this bracket is sturdy, durable, and easy to carry.