This is a easy to use cable wrapper that come's in many different sizes so that you can organise your cables. 

One end of the cable can be inserted into the middle through the slit and then twisted to lock. The cable can then be wrapped around the hoop and the end can be pushed into one of the slits at the top

There are many different sizes which are organised first by the hoop diameter (Small and Large) followed by the hoop size (Small, Medium and Large). It may take a few tries to get the best size for you cable but Small - Medium is a good start.

There is also a .f3d file with a so that you can edit the sizing to be more custom if wanted using 2 parameters, Height which changes the hoop height and Inner_ Diameter to make the hoop wider but Inner_Diameter can't be much smaller otherwise the model breaks. If anyone works out how to fix the please tell me i don't know much :)