Recommended Caps for a known manufacturing defect of the PS4

On the internet I've read that the rubber coating of the DS4 controller to wear relatively quickly.
At first I did not notice anything of it, but then as to identify the first abrasions were, I immediately looked for caps.
Which reminds me, these are run here on the way and I have to recite, I do not regret the purchase.

What I want to emphasize is that the caps are made of rubber, which in my eyes for much better grip makes as all the other caps which are made of plastic (Da help not nap).
In addition, you have two different kinds of caps, flat, outwardly rounded with mini knobs (Optimal for quick stick movements) and slightly higher with a rounded inside surface (Ideal for precision work with the stick).
The installation is also easy and straightforward.

A star deduction is only because the high caps ever can slip off the stick is too high lateral pressure. But should not happen in normal use (I play Fifa pretty ruthless).