# Custom slider properties
The slider definition property template can be used to add a custom property of slider type. When defining a slider property, the following fields can be used:
Definition properties
| Field | Description |
| --- | --- |
| type | Used for all custom property type definitions. Can be either string, integer, number, array or boolean.
This field is mandatory and should always be "number" for a slider property type definition.
Information noteThe slider effect is achieved by defining the component field to "slider", see below. |
| component | Used for defining how the property is visualized in the property panel. Used to override the default component that comes with the type setting.
This field is mandatory for a slider property and should always be "slider". |
| label | Used for defining the label that is displayed in the property panel. |
| ref | Name or ID used to reference a property. |
| defaultValue | Used for defining the default value of your custom property. |
| min | Used for defining the minimum value of the property. |
| max | Used for defining the maximum value of the property. |
| step | Used for defining the step value of the property. |
## Examples
Defining a custom property of slider type can look like below.
Example: Add custom slider property to Appearance accordion
Information noteCustomization of properties always start with items:.
```
return {
type: "items",
component: "accordion",
items: {
settings: {
uses: "settings",
items: {
MySliderProp: {
type: "number",
component: "slider",
label: "Range",
ref: "myproperties.range",
min: 10,
max: 20,
step: 0.5,
defaultValue: 15
}
}
}
```
This is what it looks like in the property panel
You can also define a new accordion item as a slider property.
Example: Add custom slider property as a new accordion item
```
return {
type: "items",
component: "accordion",
items: {
MyAccordion: {
type: "number",
component: "slider",
label: "My slider",
ref: "myproperties.range",
min: 10,
max: 20,
step: 0.5,
defaultValue: 15
}
```
