These tough black Elastomer clamps won't scratch your paint, won't rust and won't break but still route throttle, idle or clutch cables, ignition wires, brake lines and so on nice and tidy along the frame tubes. Also reduce vibrations and outer cable wear compared to metal cable clamps. They install in seconds as they snap on the tubes and use a strong and simple O-ring fixing system. Available with a single hole for one cable or boob-style double hole for two cables. Install using the small O-ring on 1 1/8" (28 thru 30mm) tubes, the large O-ring for 1 1/4" (31.75 thru 32mm) tubes. Sold in pairs.