# sm.item.getShapeSize

Returns the block dimensions of an shape. Returns nil if the uuid is not an item.

**Kind:** Function

**Environments:** Game

## Game

``` { .lua .api-signature }
sm.item.getShapeSize( uuid )
```

[Open the full Game reference](../Game-Script-Environment/Static-Functions/sm.item.md#getshapesize)

**Parameters:**

| Name | Type | Description |
| --- | --- | --- |
| `uuid` | [Uuid](../Game-Script-Environment/Userdata/Uuid.md) | The item uuid. |

**Returns:**

| Type | Description |
| --- | --- |
| [Vec3](../Game-Script-Environment/Userdata/Vec3.md) | Size of the shape. |