# Sandbox.PhysicsTraceBuilder.WithTag

```csharp
PhysicsTraceBuilder WithTag(StringToken ident)
```

Only return entities with this tag. Subsequent calls to this will add multiple requirements
and they'll all have to be met (ie, the entity will need all tags).

### Parameters

- `ident` (`StringToken`)

### Returns

`PhysicsTraceBuilder`

Declared in [Sandbox.PhysicsTraceBuilder](/api/Sandbox.PhysicsTraceBuilder).
Assembly: `Sandbox.Engine`.