A total of 3 reviews of this product on Reddit.
30th Mar 2021
This one Amazon.com: Anodizing Aluminum CNC Case Rubber Feet Screws Suitable for Anne Pro 2 Keyboard (Black): Computers & Accessories .
The shipping was actually extremely fast.
17th Oct 2020
Got this one: https://www.amazon.com/dp/B07ZQ7BDJY/ref=cm_sw_r_tw_dp_x_TX.HFbQAQPBPX which doesn’t require desoldering the battery for a low profile battery. And the foam that it comes with fits nicely for sound dampening as well if you trim it.
20th Apr 2020
There also this one on Amazon