# Φ ProgressBar Primative: A visual indicator to express either a determined length of time an activity will take, an indeterminate amount of time, or the fact that a query or buffer is happening. Common uses are the loading of screen contents, video/audio files, the submission of a form, or a software update. [Styleguide Link](https://zpl.io/Vx9Lo1k) * Parent: [Progress Indicator](/core/overview/progressindicator.md) ## Properties ### Size The relative size in relation to the other bars in the collection. * Tiny * XSmall * Small * Medium * Large ### Shape **Linear:** A bar that displays horizontally to indicate progress. **Circular:** A bar that displays in a donut shape with the progress being shown in the shape ### Type **Determinate:** Show how long a process will take. Used when the time to complete is known. **Indeterminate:** When an unspecified amount of time is found. Used when the time to complete ISN'T known, or it isn't important to show the length of time remaining. **Query:** During the time the app is communicating with the backend we show a visual indicator of that process in an animated dashed progress bar. **Note:** As we know more about a process (loading, saving, etc.), the type can change from Indeterminate to Determinate. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://able.bucca.com/core/overview/progressindicator/progressbar.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.