diff --git a/docs/index.md b/docs/index.md
index e33eefd..f3cf4ff 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -34,32 +34,31 @@ echo $collection['b'];
 
 ## Available Methods
 
-|                             |                     |
-|-----------------------------|---------------------|
-| [at](#at)                   | [average](#average) |
-| [count](#count)             | [column](#column)   |
-| [diff](#diff)               | [each](#each)       |
-| [every](#every)             | [filter](#filter)   |
-| [fill](#fill)               | [find](#find)       |
-| [findIndex](#findIndex)     | [first](#first)     |
-| [flatten](#flatten)         | [groupBy](#groupBy) |
-| [includes](#includes)       | [isEmpty](#isEmpty) |
-| [indexOf](#indexOf)         | [items](#items)     |
-| [join](#join)               | [key](#key)         |
-| [keys](#keys)               | [last](#last)       |
-| [map](#map)                 | [merge](#merge)     |
-| [next](#next)               | [pop](#pop)         |
-| [prev](#prev)               | [push](#push)       |
-| [reduce](#reduce)           | [reverse](#reverse) |
-| [serialize](#serialize)     | [shift](#shift)     |
-| [slice](#slice)             | [sort](#sort)       |
-| [sortDesc](#sortDesc)       | [splice](#splice)   |
-| [sum](#sum)                 | [take](#take)       |
-| [toArray](#toArray)         | [values](#values)   |
-| [unique](#unique)           | [valid](#valid)     |
-| [when](#when)               | [unless](#unless)   |
-| [unserialize](#unserialize) |                     |
-
+|                         |                               |
+| ----------------------- | ----------------------------- |
+| [at](#at)               | [average](#average)           |
+| [count](#count)         | [column](#column)             |
+| [diff](#diff)           | [each](#each)                 |
+| [every](#every)         | [filter](#filter)             |
+| [fill](#fill)           | [find](#find)                 |
+| [findIndex](#findIndex) | [first](#first)               |
+| [flatten](#flatten)     | [groupBy](#groupBy)           |
+| [includes](#includes)   | [isEmpty](#isEmpty)           |
+| [indexOf](#indexOf)     | [items](#items)               |
+| [join](#join)           | [key](#key)                   |
+| [keys](#keys)           | [last](#last)                 |
+| [map](#map)             | [merge](#merge)               |
+| [next](#next)           | [pop](#pop)                   |
+| [prev](#prev)           | [push](#push)                 |
+| [reduce](#reduce)       | [reverse](#reverse)           |
+| [serialize](#serialize) | [shift](#shift)               |
+| [slice](#slice)         | [sort](#sort)                 |
+| [sortDesc](#sortDesc)   | [splice](#splice)             |
+| [sum](#sum)             | [take](#take)                 |
+| [toArray](#toArray)     | [toFixedArray](#tofixedarray) |
+| [values](#values)       | [unique](#unique)             |
+| [valid](#valid)         | [when](#when)                 |
+| [unless](#unless)       | [unserialize](#unserialize)   |
 
 ### Creation
 
@@ -127,6 +126,16 @@ return $collection->toArray();
 // $collection = ['foo', 'bar', 'baz']
 ```
 
+#### toFixedArray()
+
+Returns the items in the collection as an instance of SplFixedArray.
+Fixed arrays use significantly less memory and have better performance.
+
+```php
+$collection = new Collection(['foo', 'bar', 'baz']);
+return $collection->toFixedArray();
+```
+
 #### items()
 
 Returns an ArrayIterator with all of the items in the collection.
@@ -241,7 +250,7 @@ return $collection->average('foo');
 
 #### column()
 
-Returns a new collection from the original collection with single column of collection. 
+Returns a new collection from the original collection with single column of collection.
 
 ```php
 $collection = new Collection([
diff --git a/src/CollectionTrait.php b/src/CollectionTrait.php
index a1db162..e132151 100644
--- a/src/CollectionTrait.php
+++ b/src/CollectionTrait.php
@@ -2,6 +2,8 @@
 
 namespace Myth\Collection;
 
+use SplFixedArray;
+
 trait CollectionTrait
 {
     protected array $items = [];
@@ -14,6 +16,15 @@ public function toArray()
         return $this->items;
     }
 
+    /**
+     * Returns the collection of items as a SPLFixedArray
+     * for much lower memory usage, and a bit more speed.
+     */
+    public function toFixedArray(): SplFixedArray
+    {
+        return SplFixedArray::fromArray($this->items);
+    }
+
     /**
      * Returns an ArrayIterator object with the items
      * in the collection.
@@ -112,7 +123,7 @@ public function diff($array, $columns = null)
         if ($array instanceof Collection) {
             $array = $array->toArray();
         }
-        
+
         if ($columns === null) {
             return new static(array_diff($this->items, $array));
         }
@@ -601,7 +612,7 @@ public function unless(callable $callback)
      */
     private function generateKeyFromColumns($item, $columns)
     {
-        return implode('|', array_map(function($column) use ($item) {
+        return implode('|', array_map(function ($column) use ($item) {
             return is_array($item) ? $item[$column] : $item->{$column};
         }, $columns));
     }
diff --git a/tests/InstanceTest.php b/tests/InstanceTest.php
index 7cdcbc6..9e81b99 100644
--- a/tests/InstanceTest.php
+++ b/tests/InstanceTest.php
@@ -4,6 +4,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Myth\Collection\Collection;
+use SplFixedArray;
 
 class InstanceTest extends TestCase
 {
@@ -789,4 +790,12 @@ public function testUnless()
         });
         $this->assertEquals(['a' => 1, 'c' => 3, 'e' => 5], $new->toArray());
     }
+
+    public function testToFixedArray()
+    {
+        $collection = new Collection([1, 2, 3, 4, 5]);
+        $new = $collection->toFixedArray();
+        $this->assertInstanceOf(SplFixedArray::class, $new);
+        $this->assertEquals([1, 2, 3, 4, 5], $new->toArray());
+    }
 }