# `GSGuide.size`

*Instance Property*

The size of the guide.

## Declaration

```swift
var size: NSSize { get set }
```

```objc
@property (nonatomic, assign) NSSize size;
```

```python
size() -> NSSize
setSize_(size: NSSize)
```

## 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.length`](/Core/GlyphsCore/GSGuide/length) — The length of the guide.