This ring will be compatible with Azeron keypads that have removable injection molded ring around the thumbstick. Instructions:

1. print the ring - if it doesn't fit, scale it up or down and print again
2. remove the thumbstick cap (as it is in the picture)
3. stick something flat between thumbstick and original ring and carefully pry it out
4. put the octagonal ring in (can take some force), make sure the direction is the one you want as forward
5. put the thumbstick cap back on That's it, have fun gaming!