The installation is very simple but by the large number of keys but somewhat time consuming in total. A good key jack is highly recommended. In my Ducky Shine 3 an excellent model for the lay can be even larger amounts keys remove quickly and safely.
To coat the donuts I have a simple "jewelry Biegezange" or "nose pliers" from a cheap precision mechanic pliers setting used. With a little practice it took me less than 10 seconds per button, and the rubber ring can be pushed very precisely to the end of the pin.
Highlighting positive I have the erklassigen effect that these rings. The noise is significantly attenuated as promised. Furthermore, another positive side effect has emerged at the Cherry MX Brown switches. The "Tactile Bump" of these switches is significantly better feeling with the Dämpern.
Without disadvantages does not go the whole course. Overall, the key with the dampers to feel less mechanical and remember more strongly on the cheap "Rubber Dome" models. No wonder - it also suggests yes on rubber. We also somewhat limited the key travel - also robs the keyboard some of his harsh, mechanical charm.
For me personally, the disadvantages play virtually no role. The shortened key travel leads to a better perception of the Tactile Bump and the gentle knocking on the rubber rings is probably for me the better alternative. Who like me not being able to press the button only to trigger and instead frequently suppressed until impact, which I can highly recommend this very damper. Otherwise it is in fact no matter what switches you take, then any mechanical keyboard is a source of noise.