[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Input](./puppeteer.protocol.input.md) > [TouchPoint](./puppeteer.protocol.input.touchpoint.md) > [radiusX](./puppeteer.protocol.input.touchpoint.radiusx.md) ## Protocol.Input.TouchPoint.radiusX property X radius of the touch area (default: 1.0). Signature: ```typescript radiusX?: number; ```