Q-Fit Thumb and Wrist Splint sizing
Measurement: Measure around wrist joint.
| Size | Wrist circumference (CM) |
|---|---|
| S | 13-15 |
| M | 15-18 |
| L | 18-20 |
| XL | 20-22 |
- The BFY exact-product page lists S, M, L and XL with Left/Right designations.
- Source units and ranges are preserved exactly without conversion.
- Adjacent ranges share endpoints. The source does not specify which size applies at 15, 18 or 20 CM; no boundary rule is inferred.
- The source specifies measurement around the wrist joint but provides no more precise measurement landmark or technique.
- No chart revision date is stated on the source page.

