# tools.erase.defaultSize

Part of [Tools](https://kernstra.com/docs/web-sdk/config/tools) in the Kernstra Web SDK 1.0.0 configuration reference.

- Type: `number`
- Default: `24`
- Page: https://kernstra.com/docs/web-sdk/config/tools/erase-defaultsize

Brush a session starts with, in points. One outside `minSize`–`maxSize` is brought inside.

Web page: https://kernstra.com/docs/web-sdk/config/tools/erase-defaultsize