# What's dToken used for ? dToken is designed to prevent the outflow of funds in the diamond vault to remove the unnecessary complexity of the contract. When users need funds, dToken can be traded into Token on DolphinSwap rather than withdraw the principal from the vault directly. The value of dToken is equal to the value of Token in the beginning. When the vault starts making money, the value of dToken will always be greater than that of Token. As the funds in the vaults increase, the APY will be increasingly diluted, and the speed of dToken value increment will slow down. In order to prevent the whales from diluting the income of the pool, a 0.1% withdrawal fee is currently designed for the vault, and this design also locks the management funds to a certain extent. --- # 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://eosfi.gitbook.io/en/products/diamond/dtoken/whats-dtoken-used-for.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.