# RadioButton Appearance

The RadioButton provides predefined sizing options.

> Since [version 22.1.0](https://www.telerik.com/kendo-angular-ui/components/changelogs/kendo-angular-ui#v22.1.0), default values of the appearance properties are no longer hardcoded in the component. The default values are inherited from the Kendo theme.
>
> For more information, refer to the [Design System documentation](https://www.telerik.com/design-system).

## Size

The RadioButton allows you to customize its `width` and `height`. To achieve this utilize the [`size`](https://www.telerik.com/kendo-angular-ui-develop/components/inputs/api/radiobuttondirective#size) property. It accepts values of type [`InputSize`](https://www.telerik.com/kendo-angular-ui-develop/components/inputs/api/inputsize).

The [`size`](https://www.telerik.com/kendo-angular-ui-develop/components/inputs/api/radiobuttondirective#size) option supports the following values:

* `small`
* `medium`
* `large`

The following example demonstrates how to define the size of the RadioButton.

[Demo Source](https://demos.telerik.com/kendo-angular-ui/demos/inputs/radiobuttons/appearance/source.txt)

## Suggested Links

* [API Reference of the `RadioButtonComponent`](https://www.telerik.com/kendo-angular-ui-develop/components/inputs/api/radiobuttoncomponent)
* [API Reference of the RadioButton directive](https://www.telerik.com/kendo-angular-ui-develop/components/inputs/api/radiobuttondirective)
* [Creating Custom Styles with ThemeBuilder](https://www.telerik.com/kendo-angular-ui-develop/components/styling/theme-builder)