Bossi 104 PBT Keycaps Set | MX Switches Backlit Keycaps and Keycaps Puller（Blue keycaps + White keycaps）

Fit my son's CM CK552 keyboard just fine. A little imperfections like some keys having some shavings left over that were not cut off all the way, but at this price thats fine.

I loved the colors of blue and white. The keycaps are pbt and feel high quality.