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# Arm

The Arm object represents a two bone arm and an up vector control object. The arm bones are created from a collection of guide objects, which should contain objects for shoulder, elbow, and hand positions respectively. A bicep bone connects the shoulder and elbow objects, and a forearm bone connects the elbow and hand objects.

## Returned by

MakeArm

## Also available via

Biped.RArm

Biped.LArm

## Properties

Property Name | Type | Description
--- | --- | ---
Root | ChainRoot | the Root of the arm
Eff | ChainEffector | the Effector
UpVParent | ChainRoot | the parent of the UpVector
Skel | XSICollection | a Skeleton collection of arm chain elements
BicepRoll | BicepRoll | the bicep roll object
ForeArmRoll | ForeArmRoll | the forearm roll object
UpV | X3DObject | the up vector control icon
Hidden | XSICollection | is a collection of Hidden object
Envelope | XSICollection | is a collection of objects to be Enveloped
Shadows | XSICollection | a collection of box shadows

See CDK Object Reference for complete list of objects available in the Character Development Kit.