Neoprene Knee Brace/Sleeve

Any size guide for this knee brace?

Sorry for the delay:
Knee M – 9” x4.5”
Knee L – 12.5” x 5”

That’s an unusual size guide. I’m guessing that is what the supports measure, but a sizing guide for these typically asks that you measure around the knee or around the leg about 4 inches above the knee. 12.5" is above what my elbow measures around, so those numbers aren’t helping.