diff --git a/Runtime/Core/Animation/UISizeDelta.cs b/Runtime/Core/Animation/UISizeDelta.cs
new file mode 100644
index 0000000..94d09d8
--- /dev/null
+++ b/Runtime/Core/Animation/UISizeDelta.cs
@@ -0,0 +1,62 @@
+using UnityEngine;
+
+namespace AlicizaX.AnimationFlow.Runtime
+{
+    [Category("RectTransform")]
+    public class UISizeDelta : ActionNode
+    {
+        public float duration = 1f;
+        public EaseType easyType;
+        public RectTransform target;
+        public bool setFrom;
+        public Vector2 from;
+        public Vector2 to;
+        protected Vector2 orgValue;
+        protected Vector2 enterValue;
+
+        public override void OnInit()
+        {
+            orgValue = target.sizeDelta;
+        }
+
+        public override void OnReset()
+        {
+            target.sizeDelta = orgValue;
+        }
+
+        public override void OnEnter()
+        {
+            if (setFrom)
+            {
+                target.sizeDelta = from;
+            }
+
+            enterValue = target.sizeDelta;
+        }
+
+        public override void OnUpdate(float dt)
+        {
+            target.sizeDelta = Easing.Ease(easyType, enterValue, to, elapsedTime / duration);
+        }
+
+        public override bool Valid()
+        {
+            return target != null && duration > 0;
+        }
+
+        public override float Duration()
+        {
+            return duration;
+        }
+
+        public override bool HasSubTitle()
+        {
+            return true;
+        }
+
+        public override string SubTitle()
+        {
+            return target != null ? target.name : null;
+        }
+    }
+}
diff --git a/Runtime/Core/Animation/UISizeDelta.cs.meta b/Runtime/Core/Animation/UISizeDelta.cs.meta
new file mode 100644
index 0000000..5737f0c
--- /dev/null
+++ b/Runtime/Core/Animation/UISizeDelta.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: f371fc3375d34f16996a235b1b659f90
+timeCreated: 1741941042
\ No newline at end of file