The ultimate way to organize your cables on the steering mast. Each Clamp allows four cables to run through without interruption of the cable housing. Installation couldn't be easier and allows you to mount these without changing any of your present adjustments of derailleur or brakes. The clamps also feature a slot for your computer cable down the center of the clamp. These clamps fit all 1 1/8" or 1 1/4" OD masts. Clamps are sold in pairs.