HONKID Keyboard Foam, Sound Dampening Foam for Mechanical Keyboard Bottom, Made of LE-20 Poron, Black (H 3mm)

It's really hard to put into words how this works. If you are looking for a deeper thock sound and premium feel for your switches, this is the kit for you. I also paired this with a Poron gasket and pads (the little squares with cutouts that the switches rest on). With all three kits installed it takes your keyboard to enthusiast level. The foam needs to be cut to the desired size to put on the bottom of your board. That was easy enough just measure and match. Depending on your board you might have to make little custom changes, but it is worth it if your into modifying. For mine I had to make a little u shape cutout for where the USB-C port was as this raised it to much and wouldn't align with the port.

Great. Thanks

It's nice you cut it however you wish. Works.

Made my old GMMK board sound so much better. Before this mod it sounded very hollow, now it sounds deep and doesn’t feel empty anymore. Effective, but a hassle to install.

Nice, dense foam. It does what it is supposed to and took the ping out of my aluminum case. I paired it with the tape mod and it worked perfectly.