---
title: HandSkeleton.JointName.thumbKnuckle
framework: arkit
role: symbol
role_heading: Case
path: arkit/handskeleton/jointname/thumbknuckle
---

# HandSkeleton.JointName.thumbKnuckle

## Declaration

```swift
case thumbKnuckle
```

## See Also

### Thumb joints

- [HandSkeleton.JointName.thumbIntermediateBase](arkit/handskeleton/jointname/thumbintermediatebase.md)
- [HandSkeleton.JointName.thumbIntermediateTip](arkit/handskeleton/jointname/thumbintermediatetip.md)
- [HandSkeleton.JointName.thumbTip](arkit/handskeleton/jointname/thumbtip.md)