---
title: thumbIP
framework: vision
role: symbol
role_heading: Type Property
path: vision/vnhumanhandposeobservation/jointname/thumbip
---

# thumbIP

The thumb’s interphalangeal (IP) joint.

## Declaration

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

## See Also

### Thumb

- [thumbTip](vision/vnhumanhandposeobservation/jointname/thumbtip.md)
- [thumbMP](vision/vnhumanhandposeobservation/jointname/thumbmp.md)
- [thumbCMC](vision/vnhumanhandposeobservation/jointname/thumbcmc.md)