7 inch articulating friction arm is extremely handy for mounting all types of accessories.The arms have two nicely machined metal sections.Just one knob controls all of the functions, easy to set and lock into position.There is a ball joint on the base and on the top to allow it to swivel in most any direction.The top has a 1/4×20 threaded post. The bottom has a locking standard accessory flash shoe, and also a female 1/4×20 thread. Can be easily mounted on all accessory shoes, or mount on a tripod or light stand. Durable, all metal construction. 7 inch height.