diff --git a/src/Data/Base/ToArrayObject.php b/src/Data/Base/ToArrayObject.php
index dba550b2..e54c465e 100644
--- a/src/Data/Base/ToArrayObject.php
+++ b/src/Data/Base/ToArrayObject.php
@@ -51,7 +51,7 @@ private function mapPropertyValue(
         return match (true) {
             $has_mapper => $this->mapWithMapper($property, $value),
             $value instanceof Data => $this->mapWithData($case, $value),
-            $value instanceof TypedCollection => $value->toArrayObject(),
+            $value instanceof TypedCollection => $value->toArrayObject(case: $case),
             $value instanceof Collection => $this->mapWithCollection($case, $value),
             $value instanceof CarbonImmutable => $this->mapWithCarbonImmutable($value),
             $value instanceof BackedEnum => $value->value,
@@ -74,7 +74,13 @@ private function mapWithData(string $case, Data $value): \ArrayObject
     private function mapWithCollection(string $case, Collection $value): array
     {
         return $value->map(function ($item) use ($case) {
-            return $this->toArrayObject($item, $case);
+            return match (true) {
+                $item instanceof TypedCollection => $item->toArrayObject(case: $case),
+                $item instanceof Collection => $item->toArrayObject(),
+                $item instanceof Data => $item->toArrayObject(case: $case),
+                $item instanceof BackedEnum => $item->value,
+                default => $item,
+            };
         })->toArray();
     }
 
diff --git a/src/Data/Base/TypedCollection.php b/src/Data/Base/TypedCollection.php
index f8308cc6..9c4bcbcf 100644
--- a/src/Data/Base/TypedCollection.php
+++ b/src/Data/Base/TypedCollection.php
@@ -56,13 +56,14 @@ public function reduce(callable $callback, $initial = null)
         return $this->toBase()->reduce($callback, $initial);
     }
 
-    public function toArrayObject(): \ArrayObject
-    {
-        return new \ArrayObject($this->map(function ($item) {
+    public function toArrayObject(
+        string $case = 'camel',
+    ): \ArrayObject {
+        return new \ArrayObject($this->map(function ($item) use ($case) {
             return match (true) {
-                $item instanceof TypedCollection => $item->toArrayObject(),
+                $item instanceof TypedCollection => $item->toArrayObject(case: $case),
                 $item instanceof Collection => $item->toArrayObject(),
-                $item instanceof Data => $item->toArrayObject(),
+                $item instanceof Data => $item->toArrayObject(case: $case),
                 $item instanceof BackedEnum => $item->value,
                 default => $item,
             };
diff --git a/src/Data/Schemas/ListingsItems/AttributesListSchema.php b/src/Data/Schemas/ListingsItems/AttributesListSchema.php
index 4e5b509a..dd91188d 100644
--- a/src/Data/Schemas/ListingsItems/AttributesListSchema.php
+++ b/src/Data/Schemas/ListingsItems/AttributesListSchema.php
@@ -11,7 +11,7 @@ class AttributesListSchema extends TypedCollection
 {
     public const ITEM_CLASS = AttributeSchema::class;
 
-    public function toArrayObject(): \ArrayObject
+    public function toArrayObject(string $case = 'camel'): \ArrayObject
     {
         $array_object = new \ArrayObject();
         $attribute_names = $this->pluck('name')->unique()->toArray();
diff --git a/tests/Unit/Data/Base/ToArrayObjectTest.php b/tests/Unit/Data/Base/ToArrayObjectTest.php
index 759f86a1..1005866a 100644
--- a/tests/Unit/Data/Base/ToArrayObjectTest.php
+++ b/tests/Unit/Data/Base/ToArrayObjectTest.php
@@ -2,9 +2,10 @@
 
 namespace Jasara\AmznSPA\Tests\Unit\Data\Base;
 
+use Illuminate\Support\Collection;
+use Jasara\AmznSPA\Data\Base\Data;
 use Jasara\AmznSPA\Data\Base\ToArrayObject;
 use Jasara\AmznSPA\Data\Requests\FulfillmentInbound\PutTransportDetailsRequest;
-use Jasara\AmznSPA\Data\Requests\ListingsItems\ListingsItemPatchRequest;
 use Jasara\AmznSPA\Data\Schemas\FulfillmentInbound\v0\PartneredLtlDataInputSchema;
 use Jasara\AmznSPA\Data\Schemas\MerchantFulfillment\AdditionalSellerInputSchema;
 use Jasara\AmznSPA\Data\Schemas\Notifications\ProcessingDirectiveSchema;
@@ -27,22 +28,12 @@ public function testReturnsDataUsingMappers(): void
 
     public function testReturnsDataUsingCollection(): void
     {
-        $data = ListingsItemPatchRequest::from([
-            'product_type' => 'test',
-            'patches' => [
-                [
-                    'op' => 'add',
-                    'path' => '/path',
-                ],
-            ],
-        ]);
+        $test = new Collection(['abc']);
+        $data = new CollectionTest($test);
 
         $array_object = $data->toArrayObject();
 
-        $this->assertEquals('test', $array_object['productType']);
-        $this->assertCount(1, $array_object['patches']);
-        $this->assertEquals('add', $array_object['patches'][0]['op']);
-        $this->assertEquals('/path', $array_object['patches'][0]['path']);
+        $this->assertEquals('abc', $array_object['test'][0]);
     }
 
     public function testReturnsDataUsingCarbonImmutable(): void
@@ -82,3 +73,11 @@ public function testReturnsDataUsingPascalCase(): void
         $this->assertEquals('LTL', $array_object['ShipmentType']);
     }
 }
+
+class CollectionTest extends Data
+{
+    public function __construct(
+        public Collection $test,
+    ) {
+    }
+}
diff --git a/tests/Unit/Data/Base/TypedCollectionTest.php b/tests/Unit/Data/Base/TypedCollectionTest.php
index 008c5fb0..32d30052 100644
--- a/tests/Unit/Data/Base/TypedCollectionTest.php
+++ b/tests/Unit/Data/Base/TypedCollectionTest.php
@@ -99,4 +99,16 @@ public function testCanReduceValues(): void
 
         $this->assertEquals('GET', $collection->reduce(fn (string $carry, RestrictedResourceSchema $resource) => $carry . $resource->method, ''));
     }
+
+    public function testToArrayObject(): void
+    {
+        $collection = RestrictedResourcesListSchema::make([
+            new RestrictedResourceSchema(method: 'GET', path: '/path', data_elements: null),
+        ]);
+
+        $array_object = $collection->toArrayObject();
+
+        $this->assertEquals('GET', $array_object[0]['method']);
+        $this->assertEquals('/path', $array_object[0]['path']);
+    }
 }