C-88M12S : Clamping M12x1.0 Tube and Horizontal Swivel Long Angle Clamp, For example clamping M12x1.0 Tube, H2-12-05~30, H89-12/W, H20-12/W, H3-12-40/50, H4-20-30/40/50, H0-8/20-BF7/BF8 Holders, RCG-1225/1275, GA-1250/12100 Holder Bracket and horizontal swivel