---
title: ClothSimulationComponent.FrictionOverridesCollection.Key
framework: realitykit
role: symbol
role_heading: Structure
path: realitykit/clothsimulationcomponent/frictionoverridescollection/key
---

# ClothSimulationComponent.FrictionOverridesCollection.Key

The pair of materials whose combined frictions are overridden.

## Declaration

```swift
struct Key
```

## Topics

### Creating a key

- [init(_:_:)](realitykit/clothsimulationcomponent/frictionoverridescollection/key/init(_:_:).md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Identifying overrides

- [ClothSimulationComponent.FrictionOverridesCollection.Value](realitykit/clothsimulationcomponent/frictionoverridescollection/value.md)