---
title: thumbMP
framework: vision
role: symbol
role_heading: Type Property
path: vision/vnhumanhandposeobservation/jointname/thumbmp
---

# thumbMP

The thumb’s metacarpophalangeal (MP) joint.

## Declaration

```swift
static let thumbMP: VNHumanHandPoseObservation.JointName
```

## See Also

### Thumb

- [thumbTip](vision/vnhumanhandposeobservation/jointname/thumbtip.md)
- [thumbIP](vision/vnhumanhandposeobservation/jointname/thumbip.md)
- [thumbCMC](vision/vnhumanhandposeobservation/jointname/thumbcmc.md)