Con-Tact Brand Adhesive Zip-N-Fit Drawer Liner, Solid Grip and Non-Slip Shelf Liner, Suitable to Use in Home, Office, Garage, and More, 18" x 4', Black, Pack of 1

This makes cutting out sizes for sound-proofing your mechanical keyboard much easier than using scissors or other. That said it's a bit of a band-aid solution and if you can find something denser or better for your keyboard situation then go for that instead. This is more of a beginner-friendly product for keyboard modding I think and I enjoyed working with it for my first time modding.

I love this grip liner, I use it in all my shelfs and drawers throughout my house. It is easy to clean and measure the correct size with no scissors required. Make sure to be careful when tearing the perforated lines, if you pull too hard or quickly and it can separate in the wrong area.

This stuff is great to have around the house. So many uses for it.

The product description says 6 rolls and I have been sent 1 roll in a large box. Basically this a 61 dollars to line one drawer.