This Mount Clamp Support to Clip Size of 0.63"-1.56" Compatible with most kind of shoot accessories or tools like photo studio light stand , monitor , flash lamp , photography reflector , photo boom stand , cross bars , selfie stick , tripod , equipment and so on. Wide Range of Application Indoor and Outdoor It could be clamps on another suitable object as shelves / bookshelf / desk / chair /rod / stick / handle / pole / pipe / hooks / plate / gun / umbrella etc. Horizontal Rotation of 360°and Vertical Folding of 180° Double head clamp design which support to adjust all degree as per you need some accessory or tool on your life. Stable and Secure Ball Head Mounts Make of nylon fiber composite material. It very hard and durable,the double clip include non-slip rubber that in order to reduce scratches and keep balance. Application Tips It could be quickly conveniently to attach and detach from object, the maximum load weight is 5 lb or even more,so please pay attention to consider the balance of bracing objects. Instruction The spring on Composite Double Socket Arm play a part of assisting which help the ball head clamp to fix. First press the side of spring and put a ball head mount into the other side of Composite Double Socket Arm,second put another ball head mount into the Composite Double Socket Arm,finally adjust and tighten it.