> For the complete documentation index, see [llms.txt](https://docs.optitrack.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.optitrack.com/v2.3/markersets/hand-and-fingers/left-and-right-hand-11.md).

# Left and Right Hand (11)

<div><figure><img src="/files/FTcAcXrw1XA5FoGkwxVO" alt=""><figcaption></figcaption></figure> <figure><img src="/files/hHmUrgxIeWEG0TuU6muO" alt=""><figcaption></figcaption></figure></div>

#### Hand + Finger Markers

{% hint style="info" %}
Finger markersets include extra markers on the fingers, and the finger tracking is done by analyzing the kinematics of the hand and estimating the pose of each finger. The WristIn marker is removed and replaced by a forearm marker. Attaching finger markers uses mocap Velcro gloves and hand markers, which can be found from our [webstore](http://optitrack.com/products/motion-capture-suits/).
{% endhint %}

<table><thead><tr><th width="148.33333333333331">Label</th><th width="184">Related Segment</th><th>Description</th></tr></thead><tbody><tr><td>LFArm<br>RFArm</td><td>Forearm</td><td>Place the marker on the front side of the forearm while in T-pose. For best results, slightly offset the left and right forearm markers to introduce the asymmetry on each side.</td></tr><tr><td>LFArm<br>RFArm</td><td>Forearm</td><td>Place the marker on the backside of the forearm along the ulna between the wrist and the elbow. </td></tr><tr><td>LWristOut<br>RWristOut</td><td>Fore Arm / Hand</td><td>Place the marker on the outside (lateral side) of the wrist axis. (distal end of the radius bone). Note that the wrist axis is not always located on the protruding bone but 1-2 cm more towards the hand.</td></tr><tr><td>LWristIn<br>RWristIn</td><td>Fore Arm / Hand</td><td>Place the marker on the inner prominence (medial side) of the wrist axis (distal end of the ulnar bone).</td></tr><tr><td>LHandOut<br>RHandOut</td><td>Hand</td><td>Place the marker slightly below the pinky knuckle. More specifically, between distal end of the fifth and fourth metacarpal bones.</td></tr><tr><td>LHandIn<br>RHandIn</td><td>Hand</td><td>Place the marker slightly below the forefinger knuckle. More specifically, between distal end of the second metacarpal bones.</td></tr><tr><td></td><td>Fingers</td><td>Place a marker on the tips of each finger and the thumb. </td></tr></tbody></table>


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