diff --git a/builder/applbuild/configure.py b/builder/applbuild/configure.py
index 94d0ff6..89514ad 100644
--- a/builder/applbuild/configure.py
+++ b/builder/applbuild/configure.py
@@ -2,19 +2,18 @@
 # -*- coding: utf-8 -*-
 
 from pathlib import Path
-from typing import Any, Dict, List, Tuple, Union
+from typing import Any, Dict, List, Tuple, TypeVar, Union
 
 from clickgen.util import LikePath, PNGProvider
 
-from applbuild.constants import (
-    WIN_CANVAS_SIZE,
-    WIN_CURSORS_CFG,
-    WIN_DELAY,
-    WIN_SIZE,
-    X_CURSORS_CFG,
-    X_DELAY,
-    X_SIZES,
-)
+from applbuild.constants import WIN_CURSORS_CFG, WIN_DELAY, X_CURSORS_CFG, X_DELAY
+
+
+X = TypeVar("X")
+
+
+def to_tuple(x: X) -> Tuple[X, X]:
+    return (x, x)
 
 
 def get_config(bitmaps_dir: LikePath, **kwargs) -> Dict[str, Any]:
@@ -27,11 +26,11 @@ def get_config(bitmaps_dir: LikePath, **kwargs) -> Dict[str, Any]:
 
     Keywords Args:
 
-    :x_sizes: (List[Size] | Size) List of sizes or single size for xcursors.
+    :x_sizes: (List[int]) List of pixel-sizes for xcursors.
 
-    :win_canvas_size: (Size) Windows cursor's canvas size.
+    :win_canvas_size: (int) Windows cursor's canvas pixel-size.
 
-    :win_size: (Size) Size for Windows cursor.
+    :win_size: (int) Pixel-size for Windows cursor.
 
 
     Example:
@@ -41,15 +40,13 @@ def get_config(bitmaps_dir: LikePath, **kwargs) -> Dict[str, Any]:
     ```
     """
 
-    if kwargs.get("x_sizes"):
-        x_sizes = kwargs.pop("x_sizes")
-    else:
-        x_sizes = X_SIZES
+    w_size = to_tuple(kwargs.pop("win_size"))
+    w_canvas_size = to_tuple(kwargs.pop("win_canvas_size"))
+    x = kwargs.pop("x_sizes")
 
-    if kwargs.get("win_size"):
-        w_size = kwargs.pop("win_size")
-    else:
-        w_size = WIN_SIZE
+    x_sizes = []
+    for s in x:
+        x_sizes.append(to_tuple(s))
 
     png = PNGProvider(bitmaps_dir)
     config: Dict[str, Any] = {}
@@ -77,7 +74,7 @@ def get_config(bitmaps_dir: LikePath, **kwargs) -> Dict[str, Any]:
             position = win_data.get("position", "center")
             win_delay: int = win_data.get("delay", WIN_DELAY)
 
-            canvas_size: Tuple[int, int] = win_data.get("canvas_size", WIN_CANVAS_SIZE)
+            canvas_size: Tuple[int, int] = win_data.get("canvas_size", w_canvas_size)
             win_size: Tuple[int, int] = win_data.get("size", w_size)
 
             # Because provided cursor size is bigger than cursor's canvas.
diff --git a/builder/applbuild/constants.py b/builder/applbuild/constants.py
index 8f4831c..94c2e9c 100644
--- a/builder/applbuild/constants.py
+++ b/builder/applbuild/constants.py
@@ -11,26 +11,10 @@ URL = "https://github.com/ful1e5/apple_cursor"
 
 # XCursor
 X_DELAY: int = 10
-X_SIZES: List[Tuple[int, int]] = [
-    (22, 22),
-    (24, 24),
-    (28, 28),
-    (32, 32),
-    (40, 40),
-    (48, 48),
-    (56, 56),
-    (64, 64),
-    (72, 72),
-    (80, 80),
-    (88, 88),
-    (96, 96),
-]
 
 
 # Windows Cursor
 WIN_DELAY = 1
-WIN_CANVAS_SIZE = (32, 32)
-WIN_SIZE = (24, 24)
 
 X_CURSORS_CFG: Dict[str, Dict[str, int]] = {
     ##########
@@ -108,5 +92,5 @@ WIN_CURSORS_CFG: Dict[str, Dict[str, str]] = {
     ############
     # Note: Animated cursors don't need frame numbers.
     "left_ptr_watch": {"to": "Work", "position": "top_left"},
-    "wait": {"to": "Busy", "size": WIN_CANVAS_SIZE},
+    "wait": {"to": "Busy"},
 }
diff --git a/builder/build.py b/builder/build.py
index 6e3a5a2..c55ab11 100644
--- a/builder/build.py
+++ b/builder/build.py
@@ -3,8 +3,8 @@
 
 import argparse
 from pathlib import Path
-from applbuild.configure import get_config
 
+from applbuild.configure import get_config
 from applbuild.generator import build, wbuild, xbuild
 
 parser = argparse.ArgumentParser(
@@ -49,7 +49,7 @@ parser.add_argument(
     "-xs",
     "--xsizes",
     dest="xsizes",
-    metavar="SIZE",
+    metavar="INT",
     nargs="+",
     default=[
         22,
@@ -74,7 +74,7 @@ parser.add_argument(
     "-ws",
     "--win-size",
     dest="win_size",
-    metavar="SIZE",
+    metavar="INT",
     default=24,
     type=int,
     help="Set pixel-size for Windows cursors. (default: %(default)s)",
@@ -84,8 +84,8 @@ parser.add_argument(
 parser.add_argument(
     "-wcs",
     "--win-canvas-size",
-    dest="win_sizes",
-    metavar="SIZE",
+    dest="win_canvas_size",
+    metavar="INT",
     default=32,
     type=int,
     help="Set pixel-size for Windows cursor's canvas. (default: %(default)s)",
@@ -99,8 +99,12 @@ bitmaps_dir = Path(args.png_dir)
 x_out_dir = Path(args.out_dir) / "macOSBigSur"
 win_out_dir = Path(args.out_dir) / "macOSBigSur_Windows"
 
-
-config = get_config(bitmaps_dir)
+config = get_config(
+    bitmaps_dir,
+    x_sizes=args.xsizes,
+    win_canvas_size=args.win_canvas_size,
+    win_size=args.win_size,
+)
 
 if args.platform == "unix":
     xbuild(config, x_out_dir)