Autofit Box collider to Mesh Renderer Bounds, usefull when you are trying to adjust box collider on multiple objects at once

AutoFitBoxCollider.cs

using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;

public static class AutoFitBoxCollider
{
	[MenuItem("Tools/Autofit BoxCollider")]
	private static void AutoFitBoxCollider()
	{
		var gos = Selection.gameObjects;
		if (PrefabStageUtility.GetCurrentPrefabStage() != null)
		{
			foreach (var go in gos)
			{
				if (!go.TryGetComponent(out MeshRenderer mr))
				{
					continue;
				}

				if (!go.TryGetComponent(out BoxCollider bc))
				{
					continue;
				}

				var bound = mr.localBounds;
				bc.size = bound.size;
				bc.center = bound.center;
				EditorUtility.SetDirty(go.gameObject);
			}
		}
		else
		{
			foreach (var go in gos)
			{
				if (!go.TryGetComponent(out MeshRenderer mr))
				{
					continue;
				}

				if (!go.TryGetComponent(out BoxCollider bc))
				{
					continue;
				}

				var bound = mr.localBounds;
				bc.size = bound.size;
				bc.center = bound.center;
				EditorUtility.SetDirty(go.gameObject);
			}
		}
	}
}