# PhysicsDistanceJoint A joint that maintains a minimum and maximum distance between two entity pins. ``` struct PhysicsDistanceJoint ``` ## Overview A distance joint restricts the distance between `pin0` and `pin1`. The joint determines this closed range according to [`distanceLimit`](/documentation/RealityKit/PhysicsDistanceJoint/distanceLimit). This joint allows full rotational freedom between `pin0` and `pin1`. ## Topics ### Initializers [`init(pin0: GeometricPin, pin1: GeometricPin, distanceLimit: ClosedRange, checksForInternalCollisions: Bool)`](/documentation/RealityKit/PhysicsDistanceJoint/init(pin0:pin1:distanceLimit:checksForInternalCollisions:)) Creates a new distance joint. ### Instance Properties [`var distanceLimit: ClosedRange`](/documentation/RealityKit/PhysicsDistanceJoint/distanceLimit) Specifies the minimum and maximum allowed distance between the pins. [`var tolerance: Float`](/documentation/RealityKit/PhysicsDistanceJoint/tolerance) An extension of the distance limit, as a percentage-based error tolerance. ## Relationships ### Conforms To [`Equatable`](/documentation/Swift/Equatable) [`PhysicsJoint`](/documentation/RealityKit/PhysicsJoint) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)