---
id: "P:cAlgo.API.ChartArrow.Thickness"
kind: "property"
type: "T:cAlgo.API.ChartArrow"
url: "https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartArrow/Thickness/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# ChartArrow.Thickness

Member of [ChartArrow](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartArrow/index.md).

## Thickness

Gets or sets the thickness of the Arrow.

Environments: Desktop supported · CLI works differently · Cloud works differently.

- CLI: Created and kept with all its properties, but never drawn: the CLI displays no chart.
- Cloud: Created and kept with all its properties, but never drawn: the cloud displays no chart.

C#:

```csharp
int Thickness {get; set;}
```

Python:

```python
chartArrow.Thickness: int
```

### Returns

`int` — 

### Examples

C#:

```csharp
var arrow = Chart.DrawArrow("arrow", Bars.OpenTimes.Last(20), Bars.LowPrices.Last(20), Bars.OpenTimes.LastValue, Bars.HighPrices.LastValue, Color.Red);
arrow.Thickness = 3;
Print("Arrow thickness: {0}", arrow.Thickness);
```

Python:

```python
arrow = api.Chart.DrawArrow("arrow", api.Bars.OpenTimes.Last(20), api.Bars.LowPrices.Last(20), api.Bars.OpenTimes.LastValue, api.Bars.HighPrices.LastValue, Color.Red)
arrow.Thickness = 3
api.Print(f"Arrow thickness: {arrow.Thickness}")
```