C-8812S : Clamping 12mm Tube and Horizontal Swivel Long Angle Clamp, For example clamping 12mm Tube, H8-12-05~30, H9-12-05~30 Holders, AA-1250, AA-12150 Angle Arms, EA-1275/85/95/105 Elbow Arms, EGA-1275/85/95/105 Elbow Gripper Arms and horizontal swivel