Pretty thin and flexible, but it does not fit snuggly at all on my keyboard. I was expecting that having a Ducky Keyboard and this being a Ducky product the fit would be pretty good. Because the protector doesn't go very deep on the keys, this thing mostly just sits on top of your keys, but it moves around a lot :(

Just purchased this, so I can't say anything about its long term durability, but I give it 5/5 so far.
* It's thin and flexible enough to not slow down typing nor remove the feedback from mechanical keys
* The texture is to be expected; ever so slightly gummy but without any stickiness, increased friction to lateral movement
* It muffles the noise a little (I don't mind this)
* It fit my Mistel X8 without any modification

The ducky fits my Code keyboard with 87 keys with some simple scissoring of the cover. Works very well. This keeps my cats from constantly dropping bits of food into my expensive piece of equipment.

I make a total mess of my keyboards unless they're covered, and this fits my Ducky One perfectly. I can easily type through it, and it has kept my keyboard like new.

Seems to be well made, and does what it is supposed to do.
WARNING: doe's not fit shine 5.

Fast shipping and appears to be a quality product. Designed to sit on top of the keys, this makes it easy to remove for cleaning. The silicon in open spaces between key areas sits higher, preventing mounting below the casing. 5 stars for quality product that does what it was designed to do.