# Before using Gridaboard, Grida Board([Link to Grida Board Website](https://gridaboard.web.app/)) is a web application that presents what you write on paper with a smart pen on a PC screen. Therefore, it is the most effective and convenient web application for online classes and presentations in a non-face-to-face environment. You need Neo smartpen to use Gridaboard.\ If you want to purchase Neo smartpen, please visit our website below! {% hint style="info" %} [**👉Click to buy Neo smartpen**](https://neo-smartpen.myshopify.com/) {% endhint %} --- # 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://neolabdev.gitbook.io/gridaboard-eng/help/how-to-use-gridaboard/before-use-gridaboard.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.