# Number input (UI SDK): Mouse wheel

> With `wheel`, scrolling over the focused field steps the value. It’s off by default, so a page that scrolls past the field never changes it.

Canonical: https://hextaui.com/docs/ui-sdk-number-input/examples/wheel

Component docs: https://hextaui.com/docs/ui-sdk-number-input

## Add this example

```bash
npx shadcn@latest add https://hextaui.com/r/ui-sdk-number-input-wheel.json
```

This adds `components/examples/ui-sdk-number-input/wheel.tsx` with the Number input component and the HextaUI theme tokens.

## Source

```tsx title="components/examples/ui-sdk-number-input/wheel.tsx"
import { Label } from "@/components/ui/label"
import {
  NumberInput,
  NumberInputControl,
  NumberInputDecrement,
  NumberInputGroup,
  NumberInputIncrement,
} from "@/components/ui/ui-sdk-number-input"

function UiSdkNumberInputWheel() {
  return (
    <div className="flex w-full max-w-40 flex-col gap-2">
      <Label htmlFor="hover-delay">Hover delay</Label>
      <NumberInput
        defaultValue={300}
        min={0}
        max={2000}
        step={50}
        wheel
        format={{ style: "unit", unit: "millisecond" }}
        locale="en-US"
      >
        <NumberInputGroup>
          <NumberInputDecrement />
          <NumberInputControl id="hover-delay" />
          <NumberInputIncrement />
        </NumberInputGroup>
      </NumberInput>
      <p className="m-0 text-xs text-muted-foreground">
        Focus it, then scroll over it.
      </p>
    </div>
  )
}

export { UiSdkNumberInputWheel }
```

## Props in this example

### NumberInput

| Prop | Type | Default | Description |
| --- | --- | --- | --- |
| `defaultValue` | `number \| null` | – |  |
| `min` | `number` | – |  |
| `max` | `number` | – |  |
| `step` | `number` | `1` |  |
| `format` | `Intl.NumberFormatOptions` | – |  |
| `locale` | `string` | – | Defaults to the page’s language. |
| `wheel` | `boolean` | `false` |  |

### NumberInputControl

| Prop | Type | Default | Description |
| --- | --- | --- | --- |
| `id` | `string` | – |  |

## More Number input examples

- [Min and max](https://hextaui.com/docs/ui-sdk-number-input/examples/min-max)
- [Step](https://hextaui.com/docs/ui-sdk-number-input/examples/step)
- [Currency, percent and units](https://hextaui.com/docs/ui-sdk-number-input/examples/format)
- [Locale](https://hextaui.com/docs/ui-sdk-number-input/examples/locale)
- [Scrub](https://hextaui.com/docs/ui-sdk-number-input/examples/scrub)
- [Controlled](https://hextaui.com/docs/ui-sdk-number-input/examples/controlled)
- [Form](https://hextaui.com/docs/ui-sdk-number-input/examples/form)
- [Invalid](https://hextaui.com/docs/ui-sdk-number-input/examples/invalid)
- [Disabled](https://hextaui.com/docs/ui-sdk-number-input/examples/disabled)
- [Read-only](https://hextaui.com/docs/ui-sdk-number-input/examples/read-only)
- [Right to left](https://hextaui.com/docs/ui-sdk-number-input/examples/rtl)