Good quality, saves your cables from a lot of stepping on 100%. Has 4 channels with 2 different sizes. Only con is that to connect them to each other when using multiple parts one has to use the cover of the next on to connect to the one before, hence possibly leaving part of the cabling uncovered. Some pre planning can resolve this if using these for mobile use. For fixed use one can easily resolve this by cutting off the excess parts. We use them for office presentations where bulkier bridges would look unsightly, these just blend in to the decor.