# `GSGuide.length`

*Instance Property*

The length of the guide.

## Declaration

```swift
var length: CGFloat { get set }
```

```objc
@property (nonatomic, assign) CGFloat length;
```

```python
length() -> float
setLength_(length: float)
```

## See Also

### Legacy API

- [`GSGuideType`](/Core/GlyphsCore/GSGuideType) — The geometry of a guide.
- [`GSGuide.type`](/Core/GlyphsCore/GSGuide/type) — The type of the guide.
- [`GSGuide.size`](/Core/GlyphsCore/GSGuide/size) — The size of the guide.