diff --git a/mdrsclient/commands/ls.py b/mdrsclient/commands/ls.py
index 86cbcf0..d9d2dfa 100644
--- a/mdrsclient/commands/ls.py
+++ b/mdrsclient/commands/ls.py
@@ -82,7 +82,7 @@ class LsCommand(BaseCommand):
             "type": "Type",
             "acl": "Access",
             "laboratory": "Laboratory",
-            "size": "Lock/Size",
+            "size": "Size",
             "date": "Date",
             "name": "Name",
         }
@@ -94,7 +94,7 @@ class LsCommand(BaseCommand):
             sub_laboratory_name = sub_laboratory.name if sub_laboratory is not None else "(invalid)"
             length["acl"] = max(length["acl"], len(sub_folder.access_level_name))
             length["laboratory"] = max(length["laboratory"], len(sub_laboratory_name))
-            length["size"] = max(length["size"], len(sub_folder.lock_name))
+            length["size"] = max(length["size"], len(str(folder.size)))
             length["date"] = max(length["date"], len(sub_folder.updated_at_name))
             length["name"] = max(length["name"], len(sub_folder.name))
         for file in folder.files:
@@ -119,9 +119,10 @@ class LsCommand(BaseCommand):
 
         for sub_folder in sorted(folder.sub_folders, key=lambda x: x.name):
             sub_laboratory_name = cls._laboratory_name(context, sub_folder.laboratory_id)
+            sub_folder_type = "[d]" if sub_folder.lock is False else "[l]"
             print(
-                f"{'[d]':{length['type']}}\t{sub_folder.access_level_name:{length['acl']}}\t"
-                f"{sub_laboratory_name:{length['laboratory']}}\t{sub_folder.lock_name:{length['size']}}\t"
+                f"{sub_folder_type:{length['type']}}\t{sub_folder.access_level_name:{length['acl']}}\t"
+                f"{sub_laboratory_name:{length['laboratory']}}\t{sub_folder.size:{length['size']}}\t"
                 f"{sub_folder.updated_at_name:{length['date']}}\t{sub_folder.name:{length['name']}}"
             )
         for file in sorted(folder.files, key=lambda x: x.name):
@@ -149,6 +150,7 @@ class LsCommand(BaseCommand):
             "id": folder.id,
             "pid": folder.pid,
             "name": folder.name,
+            "size": folder.size,
             "access_level": folder.access_level_name,
             "lock": folder.lock,
             "laboratory": cls._laboratory_name(context, folder.laboratory_id),
diff --git a/mdrsclient/models/folder.py b/mdrsclient/models/folder.py
index 23d3d00..e5476d3 100644
--- a/mdrsclient/models/folder.py
+++ b/mdrsclient/models/folder.py
@@ -15,7 +15,7 @@ class FolderAccessLevelItem(NamedTuple):
 
 class FolderAccessLevel:
     # Bit Mask
-    # - bit 0: Storage or Repository
+    # - bit 0: Is Private
     # - bit 1: Is Public
     # - bit 2: With Password
     # - bit 3-7: (Reserved)
@@ -49,6 +49,7 @@ class FolderSimple:
     name: str
     access_level: int
     lock: bool
+    size: int
     laboratory_id: int
     description: str
     created_at: str