This essential piece of mounting hardware from Gibraltar attaches two rack bars together at a fixed 90-degree angle - great for building and connecting the frame of your drum rack. The SC-GCRA has a chrome finish to match the rest of the hardware on your kit and features a fast T-key screw for quick setups and tear-down. Fits tubes up to 1.5" in diameter. For a durable rack clamp with looks and user-friendliness at an affordable price.