diff --git a/boltons-stubs/strutils.pyi b/boltons-stubs/strutils.pyi
index a9496ad..b411887 100644
--- a/boltons-stubs/strutils.pyi
+++ b/boltons-stubs/strutils.pyi
@@ -1,4 +1,4 @@
-from typing import Any, Dict, Iterator, List, Set, Tuple, Type, Union
+from typing import Any, Dict, Iterator, List, Set, Sized, Tuple, Type, Union
 from uuid import UUID
 
 def asciify(text: str, ignore: bool = ...) -> bytes: ...
@@ -19,6 +19,8 @@ def multi_replace(
 def parse_int_list(
     range_string: str, delim: str = ..., range_delim: str = ...
 ) -> List[int]: ...
+def cardinalize(unit_noun: str, count: int) -> str: ...
+def unit_len(sized_iterable: Sized, unit_noun: str = "item") -> str: ...
 
 class DeaccenterDict:
     def __missing__(self, key: int) -> int: ...