# ArcBuffer Fields

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.buffers.arcbuffer/)

## First {#first-434679ad}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.buffers.arcbuffer/fields/first-434679ad/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Buffers/ArcBufferWriter.cs)

```csharp
public readonly ArcBufferPage First
```

Gets the first page.

## Length {#length-3dc1e731}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.buffers.arcbuffer/fields/length-3dc1e731/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Buffers/ArcBufferWriter.cs)

```csharp
public readonly int Length
```

Gets the length of this sequence.

## Offset {#offset-2cc363b6}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.buffers.arcbuffer/fields/offset-2cc363b6/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Buffers/ArcBufferWriter.cs)

```csharp
public readonly int Offset
```

Gets the offset into the first page at which this slice begins.