TARION 11'' 360&deg; Articulating Super-Lock Magic Arm Max Load 3Kg for LED Light LCD Monitor DLSR Camera Material: aluminum piping and stainless steel locking system. Max. Load: up to 3.0kg. Attachment: 1/4" male or female screw and standard cold shoe adapter. Arm tube diameter: approx. 14mm/0.6". Length (Max): approx. 285mm/11". Net Weight: approx. 290g/0.6lb