This is the worlds first cable guide to fit 4 cables and. This means that you can now mount the cables for your derailleurs, your rear brake, and your dropper post onto your frames cable guide mounts to give a clean looks to your bike and do away with those zip ties. This guide accommodates 3 standard size gear cable outers, and 1 standard size brake hose. You can also fit a standard size cable brake cable the hose slot. These are still undergoing testing so please send feedback as to what you thought of them and if any improvements can be made.