# Custom Pointers and Mark Shapes
Easily draw a geometric figure that includes a number of layout options with the help of a special class C1GaugeCustomShape. See more demos, documentation, and samples here.
## Content
Pointers and tick marks use the special class ([C1GaugeCustomShape](/componentone/docs/win/online-gauges/)) that draws as a geometric figure with a number of layout options. Also, there are a few predefined shapes. The following are the predefined shapes available via the **C1GaugePointer.Shape** property:
The properties of a custom shape are specified in **C1GaugePointer.CustomShape**. The next images illustrate all the available options. All angles and radiuses can be either positive or negative. Here the **Length** property belongs to [C1GaugePointer](/componentone/docs/win/online-gauges/), not to C1GaugeCustomShape. There is also the **Width** property in C1GaugePointer that sets the maximum of **C1GaugeCustomShape.StartWidth** and **C1GaugeCustomShape.EndWidth**. The **C1GaugePointer.FlipShape** property allows flipping the pointer. So the start becomes end and vice versa.
The **C1GaugeSingleMark** and **C1GaugeMarks** decorators have the **Shape** and **CustomShape** properties as well. 'Rectangle', 'Round', and 'Triangle' are the only available predefined shapes for the tick marks.
It may occur that several gauge elements, for example a **C1GaugeMarks** and a **C1GaugePointer**, use the same custom shape (**C1GaugeCustomShape**). If so, you can create a common shape in the **CommonShapes** collection of the owner **C1Gauge** or **C1GaugeBase**. Then you can select the name of the common shape from the drop-down list of the **CustomShape** property or you can assign this name to the **C1GaugeCustomShape.CommonShapeName** property from code.
## See Also
[Custom Pointer, Mark, and Cap Images](/componentone/docs/win/online-gauges/workingwithgaugesfor/custompointermarkand)