Description
We have come up with a simple but effective way to maximise grip using a hard plastic knob that is studded with self tappers.
Extensively trialled and results have been exceptional, with excellent grip and they will never come out of the post.
Please note these can only be used with thin walled aluminium so if you have an older model post with a black rubber stopper, you will need a new post as well.
Knob only.
