Best Seller | Tether Tools Rock Solid Master Articulating Arm RS221 Free Express Shipping! Tether Tools Rock Solid Master Articulating Arm Three Articulating Joints, Two Rotating 5/8" Ball Joints, Center Elbow Rotates 360°, Center Knob Loosens All Joints, 5/8" Studs Mate with Standard Clamps, All Metal Construction ... more Tether Tools Rock Solid Master Articulating Arm RS221 Free Express Shipping! Tether Tools Rock Solid Master Articulating Arm Three Articulating Joints, Two Rotating 5/8" Ball Joints, Center Elbow Rotates 360°, Center Knob Loosens All Joints, 5/8" Studs Mate with Standard Clamps, All Metal Construction | | $89.99 FREE shipping go to store |