# Size

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Reference](https://developer.m-files.com/APIs/gRPC-API/Reference/index.md) > [Messages](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/index.md)

HTML version: https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.Size/

- **Full name:** `MFiles.Size`
- **Proto file:** [`mfiles/structs.proto`](https://developer.m-files.com/APIs/gRPC-API/downloads/proto/mfiles/structs.proto)

<a id="fields"></a>

## Fields

| Field | Type | Number | Description |
|---|---|---|---|
| <a id="f-width"></a>`width` | `int32` | 1 |   |
| <a id="f-height"></a>`height` | `int32` | 2 |   |

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## Used in fields

- [`ThumbnailOptions.size`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.ThumbnailOptions/index.md#f-size): The size of thumbnails generated and cached by server.