Beautifully slim, yet good quality

Such a cable with its 4.3 mm diameter fits together with another 7-mm cable prima in an empty tube with 13.5 mm Interior Diameter.
The signal quality which arrives at the receiver is, in my 20 m cable length almost as good as in the 7-mm cable that I had in a direct comparison.

The inner conductor is not thick enough to be used with an F connector stable (Please note: buy appropriate 4.3mm-F connector)

Super!