Captain O-Ring - Rubber Oring Keyboard Switch Dampeners Blue [40A-R 0.4mm Reduction] (135 pcs w/Screen Cloth)

Worked to silence my keyboard. Much quiet. Advanced 360.

These are really nice and do the job well. You do have to give them a bit of a stretch before applying them to your keycaps. They are nice and cushiony making for a nicer key press. They are American made and I love that. I had only one issue. They are packaged in a small ziploc baggy with the free cloth and in order to get to them you have to either pull them out from around the cloth or try to pull the cloth out without all of the little rubber rings going flying. There has to be a packaging solution that can alleviate this issue. I hope they find it soon before I need to mod my next keyboard.

These pretty much completely dampen the sound of the downstroke on my keyboard as I am no longer bottoming out. I'm a pretty light typist though, so if you are forceful when you type, there might still be an audible sound on the downstroke. Note that these will not do anything to help with the sound of the upstroke. If that is bothering you, your switches (and possibly the way you type) are the culprit, not these orings.I recommend!

There were a couple of key caps such as the backspace keycap that didn't have enough space for the whole thickness of the ring, due to the keycap stem being too close the inner wall. However, I was able to stretch the ring out, which allowed me to insert the ring deeper. The ring was stretched many times its size, but survived the process, while still being a soft material.This was my first time trying out these o rings, and I was very happy with it. They add a feeling of mushiess to the typing experience that many complained about, but this doesn't bother me at all.I love them primarily due to the fact that the rings decrease the key travel AFTER the acuation point, which is very helpful for mashing keys during a gameplay.

I got these, along with some red o-rings, to try to dampen the noise of my Keychron K2 Pro with red switches a bit.I ended up preferring the red rings, as these blue ones changed the feel of the keys a little too much. They do dampen the noise, which is appreciated - just not quite as much as I'd hoped.I'm not going to dock anything for preferring the red rings - I got both knowing I'd only pick one or the other in the end. But I'm giving 3 stars mostly for the value: The effect the rings have on feel and sound is so slight and the price is so high compared to what they must cost to produce that it's a pretty bad value.

I used these on a Keychron K10 pro with hand lubed red switches. I am very happy with the results!

I have a Kinesis advantage 2 QD keyboard. It has very deep wells and is ergogenic. The deep wells causes every keypad to be built different in size and angle in order to maintain the wells. Its also a cherry MX and with that, comes the noise. I work in a very quiet office and for the last 5 years of owning this keyboard the clicks have made me crazy. These dampers have made my experience with my keyboard a pleasure. Easy to install and works well. Some of my keys are very low profile while others have a higher profile and is great for both. Definitely would recommend this product.

I have a CoolerMaster QuickFire XT (blue switches) and reckoned my keys were a little bit noisy considering my housemates were awoken when I started my homework in the morning. I decided to go with these O-rings as I quite like the chiclet keyboards on some laptops and feel like I can type very fast with them, so these "fat" rings (as opposed to the red "thin" rings) should do the trick.Installation was simple, albeit a bit tedious. I don't have a keycap puller so I fashioned one from a paper clip. (You should do the same instead of paying $6.99.) I initially only installed the O-rings on the 26 "letter" keys because I wasn't sure if I'd like them or not. Of course, as soon as I hit the space or wanted a capital letter the difference (in noise and feel) was massive, so I ended up putting the o-rings on all the "main" keys too (shift, enter, backspace, alt, etc.).I quite like the difference. It is noticeably quieter, although most definitely not silent. I would say the sound level is reduced 30%. But the biggest difference is the feel, as the travel is much shorter and the keys "bounce back" at the bottom of the stroke - as a result, my typing speed went up about 12 wpm. Overall, would recommend especially if you are wanting a change in the feel as well as the sound, but if your intention is only to reduce noise, these may not be the best solution. Still, a good thing to try before buying a new keyboard with different switches, however.