# PairCount

> Number of ContactPair s that this header contains.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

> **Warning:**
>
> **Deprecated.** Please use ContactPairHeader.pairCount instead.
>
> **Upgrade to** [ContactPairHeader.pairCount](/engine/6000.0/script-reference/unityengine/contactpairheader/paircount-1.md)

```csharp
public int PairCount { get; }
```