Awekeys Full Metal Keycaps Set - The Secret to Thock!? by Simulator Tech

"Just keep in mind they do lean towards that deeper and thockier sound profile." 

Maximum Thock! | Awekeys Full Metal Keycaps Review by MerkKeebs

"Since these keycaps do make your build sound deep and thockyside, if that's preferred for your build, I would by all means, definitely recommend it. I personally think the look and sound signature achievable by these caps. They are unique enough to worth the purchase. "