Having returned 2 Dualshock 4 in a very short time to sav sticks torn problems, I decided to order these protections, for two of them (the ones with curved pins), it's really the top, good grip and total control of stored movements. They fit perfectly to the surface of the sticks.
For the other 2 by against (those slightly hollow), they tend to slip out of their original positions, the required blow replace them regularly.
It is a pity that we can not control 4 identical copies, as the product of the coup deserves 5 stars.