The new Dot Line Corp. 10 SS Articulating Arm 10 inches Stainless Steel Articulating Arms support twice the weight (over 5 lbs.) of the standard articulating arms on the market today making them the toughest articulating arms. A single oversized knob locks all of the balls and joints of the arm using DLC stainless steel "Superior-Lock" technology. The top of the shorter 14mm diameter aluminum arm features a ball head with a male 1/4-20 threaded post. The bottom of the longer 14mm diameter aluminum arm features a ball head with a 1/4-20 male thread post. Attached to that is a double 1/4-20 female threaded section followed by a standard accessory shoe foot that features two locking knobs which are connected to the arm via a male 1/4-20 post.