# Ruler Picker

> A draggable tape-measure style number picker (e.g. for weight) that coasts and settles on tenths, with keyboard, wheel and touch support and a kg/lb unit switch.

- Author: [ham7a311](https://21st.dev/@ham7a311)
- Library: ham7a311
- License: MIT
- Tags: Slider, Picker, Ruler, Number Input
- Live preview: https://21st.dev/@ham7a311/components/ruler-picker

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/ham7a311/ruler-picker?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/slider.md