diff --git a/README.md b/README.md
index 8620268..01f6265 100644
--- a/README.md
+++ b/README.md
@@ -135,9 +135,11 @@ An instance of Media has the following attributes:
 - id
 - name
 - file_name
+- extension
+- type
+- mime_type
 - size (in bytes)
 - friendly_size (in human readable format)
-- mime_type
 - url
 - disk
 - data
@@ -156,9 +158,9 @@ $media->data = ['additional_data' => 'new additional data']
 $media->save()
 ```
 
-**Note:**: Updating file name & disk will be added soon.
+**Note:** Updating file name & disk will be added soon.
 
-**Heads Up!:** Do not update anything other than `name` & `data` using the Media instance. If you need to deal with collections, please read the docs below.
+**Heads Up!** Do not update anything other than `name` & `data` using the Media instance. If you need to deal with collections, please read the docs below.
 
 
 
@@ -201,7 +203,7 @@ This will establish the relationship between your model and the media model.
 
 Once done, you can associate media to the model as demonstrated below.
 
-The first parameter of the attachMedia() method can either be a media model / id or an iterable collection of models / ids.
+The first parameter of the `attachMedia()` method can either be a media model / id or an iterable collection of models / ids.
 
 ```php
 $post = Post::first();
@@ -215,31 +217,6 @@ $post->attachMedia($media, 'featured-image');
 
 `attachMedia()` returns number of media attached (int) on success & null on failure.
 
-### Disassociate media
-You can use detachMedia() to disassociate media from model.
-
-```php
-// Detach all media from all channels
-$post->detachMedia();
-
-// Detach the specified media
-$post->detachMedia($media); // or 1 or [1, 2, 3] or collection of media models
-
-// Detach all media of the default channel
-$post->clearMediaChannel();
-
-// Detach all media of the specific channel
-$post->clearMediaChannel('channel-name');
-```
-
-`detachMedia()` returns number of media detached (int) on success & null on failure.
-
-### Synchronize association / disassociation
-WIP: This feature will be added soon.
-
-
-
-
 ### Retrieve media of a model
 Apart from that, `HasMedia` trait enables your app models retrieving media conveniently.
 ```php
@@ -263,6 +240,28 @@ $post->getFirstMediaUrl();
 $post->getFirstMediaUrl('avatar');
 ```
 
+### Disassociate media
+You can use `detachMedia()` to disassociate media from model.
+
+```php
+// Detach the specified media
+$post->detachMedia($media); // or 1 or [1, 2, 3] or collection of media models
+
+// Detach all media from all channels
+$post->detachMedia();
+
+// Detach all media of the default channel
+$post->clearMediaChannel();
+
+// Detach all media of the specific channel
+$post->clearMediaChannel('channel-name');
+```
+
+`detachMedia()` returns number of media detached (int) on success & null on failure.
+
+### Synchronize association / disassociation
+WIP: This feature will be added soon.
+
 
 -----
 ## Collections
diff --git a/src/Models/Media.php b/src/Models/Media.php
index 43458ba..dc1b8af 100644
--- a/src/Models/Media.php
+++ b/src/Models/Media.php
@@ -21,7 +21,7 @@ class Media extends Model
      * @var array
      */
     protected $fillable = [
-        'disk', 'display_name', 'name', 'mime_type', 'size', 'data'
+        'name', 'file_name', 'mime_type', 'size', 'disk', 'data'
     ];
 
     protected $casts = [
@@ -31,7 +31,7 @@ class Media extends Model
 
     public static function booted()
     {
-        static::deleting(static function ($media) {
+        static::deleted(static function ($media) {
             // delete the media directory
             $deleted = Storage::disk($media->disk)->deleteDirectory($media->getDirectory());
             // if failed, try deleting the file then
@@ -80,6 +80,27 @@ public function isOfType(string $type)
         return $this->type === $type;
     }
 
+    /**
+     * Get the file size in human readable format.
+     *
+     * @return string|null
+     */
+    public function getFriendlySizeAttribute()
+    {
+        $units = ['B', 'KB', 'MB', 'GB', 'TB'];
+
+        if ($this->size == 0) {
+            return '0 ' . $units[1];
+        }
+
+        for ($i = 0; $this->size > 1024; $i++) {
+            $this->size /= 1024;
+        }
+
+        return round($this->size, 2) . ' ' . $units[$i];
+    }
+
+
     /**
      * Get the url to the file.
      *