---
title: thumbCMC
framework: createmlcomponents
role: symbol
role_heading: Type Property
path: createmlcomponents/jointkey/thumbcmc
---

# thumbCMC

A key associated with thumb carpometacarpal (CMC) joint in a hand pose.

## Declaration

```swift
static let thumbCMC: JointKey
```

## See Also

### Getting thumb properties

- [thumbIP](createmlcomponents/jointkey/thumbip.md)
- [thumbMP](createmlcomponents/jointkey/thumbmp.md)
- [thumbTip](createmlcomponents/jointkey/thumbtip.md)