Using this Condux 08988009 flexible cable guide is easy. First, make sure the Bell Adapter and Duct Adapter are properly connected to the guide. Then, simply feed the cable through the Bell Adapter, and it will smoothly pass through and exit via the Duct Adapter into the duct. When handling the cable guide, be careful not to apply excessive force that could damage the adapters or the guide itself. As for maintenance, keep it in a dry place to prevent rusting of the aluminum adapters. If it gets dirty, you can use a soft cloth to wipe it clean. If you need a different length of the cable guide, just let us know, and we can arrange it for you.