diff --git a/src/smooth_ui_toolkit.h b/src/smooth_ui_toolkit.h
index 76c5123..3f8dbf1 100644
--- a/src/smooth_ui_toolkit.h
+++ b/src/smooth_ui_toolkit.h
@@ -28,6 +28,8 @@
 #include "widgets/base/base.h"
 #include "widgets/selector/base/option.h"
 #include "widgets/selector/base/selelctor.h"
+#include "widgets/selector/smooth_selector/smooth_option.h"
+#include "widgets/selector/smooth_selector/smooth_selector.h"
 #include "widgets/smooth_widget/smooth_widget.h"
 
 #include "misc/water_wave_generator/water_wave_generator.h"
diff --git a/src/widgets/selector/base/option.h b/src/widgets/selector/base/option.h
index fab3496..2f25128 100644
--- a/src/widgets/selector/base/option.h
+++ b/src/widgets/selector/base/option.h
@@ -9,9 +9,6 @@
  *
  */
 #pragma once
-#include "../../../core/transition4d/transition4d.h"
-#include "../../base/base.h"
-#include <functional>
 
 namespace SmoothUIToolKit
 {
diff --git a/src/widgets/selector/base/selector.cpp b/src/widgets/selector/base/selector.cpp
index 4519317..a4c9edb 100644
--- a/src/widgets/selector/base/selector.cpp
+++ b/src/widgets/selector/base/selector.cpp
@@ -12,11 +12,27 @@
 
 using namespace SmoothUIToolKit::Widgets::Selector;
 
+SmoothUIToolKit::Widgets::WidgetBase* SelectorBase::getSelectedWidget()
+{
+    if (_selector_base_data.current_widget == nullptr)
+        return nullptr;
+    if (_selector_base_data.selected_option_index < 0)
+        return nullptr;
+    return _selector_base_data.current_widget->getChildren()[_selector_base_data.selected_option_index];
+}
+
 void SelectorBase::enter(WidgetBase* widget)
 {
     if (widget == nullptr)
         return;
+
+    // Set current widget
     _selector_base_data.current_widget = widget;
+    onEnter();
+
+    // Select first widget
+    if (!_selector_base_data.current_widget->isLeaf())
+        goTo(0);
 }
 
 bool SelectorBase::back()
@@ -24,12 +40,13 @@ bool SelectorBase::back()
     if (_selector_base_data.current_widget->isRoot())
         return false;
     _selector_base_data.current_widget = _selector_base_data.current_widget->getParent();
+    onBack();
     return true;
 }
 
 void SelectorBase::goLast()
 {
-    if (getOptionNum() <= 0)
+    if (getOptionNum() == 0)
         return;
 
     int new_index = _selector_base_data.selected_option_index - 1;
@@ -42,7 +59,7 @@ void SelectorBase::goLast()
 
 void SelectorBase::goNext()
 {
-    if (getOptionNum() <= 0)
+    if (getOptionNum() == 0)
         return;
 
     int new_index = _selector_base_data.selected_option_index + 1;
@@ -55,7 +72,7 @@ void SelectorBase::goNext()
 
 void SelectorBase::goTo(int optionIndex)
 {
-    if (getOptionNum() <= 0)
+    if (getOptionNum() == 0)
         return;
     if (optionIndex < 0 || optionIndex > (getOptionNum() - 1))
         return;
diff --git a/src/widgets/selector/base/selelctor.h b/src/widgets/selector/base/selelctor.h
index 499ce8d..69c92e4 100644
--- a/src/widgets/selector/base/selelctor.h
+++ b/src/widgets/selector/base/selelctor.h
@@ -9,7 +9,6 @@
  *
  */
 #pragma once
-#include "../../../core/transition4d/transition4d.h"
 #include "../../base/base.h"
 #include "option.h"
 #include <cstddef>
@@ -32,7 +31,7 @@ namespace SmoothUIToolKit
                 {
                     WidgetBase* current_widget = nullptr;
                     bool move_in_loop = true;
-                    int selected_option_index = 0;
+                    int selected_option_index = -1;
                 };
                 SelectorBaseData_t _selector_base_data;
 
@@ -40,6 +39,7 @@ namespace SmoothUIToolKit
                 inline void moveInloop(bool moveInLoop) { _selector_base_data.move_in_loop = moveInLoop; }
                 inline size_t getOptionNum() { return _selector_base_data.current_widget->getChildren().size(); }
                 inline int getSelectedOptionIndex() { return _selector_base_data.selected_option_index; }
+                WidgetBase* getSelectedWidget();
 
             public:
                 /**
@@ -64,6 +64,8 @@ namespace SmoothUIToolKit
                 void goTo(int optionIndex);
 
             public:
+                virtual void onEnter() {}
+                virtual void onBack() {}
                 virtual void onGoLast() {}
                 virtual void onGoNext() {}
                 virtual void onGoTo() {}
diff --git a/src/widgets/selector/smooth_selector/smooth_option.h b/src/widgets/selector/smooth_selector/smooth_option.h
new file mode 100644
index 0000000..a19675e
--- /dev/null
+++ b/src/widgets/selector/smooth_selector/smooth_option.h
@@ -0,0 +1,26 @@
+/**
+ * @file smooth_option.h
+ * @author Forairaaaaa
+ * @brief
+ * @version 0.1
+ * @date 2024-05-20
+ *
+ * @copyright Copyright (c) 2024
+ *
+ */
+#pragma once
+#include "../../smooth_widget/smooth_widget.h"
+#include "../base/option.h"
+
+namespace SmoothUIToolKit
+{
+    namespace Widgets
+    {
+        namespace Selector
+        {
+            class SmoothOption : public SmoothWidgetBase, public OptionBase
+            {
+            };
+        } // namespace Selector
+    }     // namespace Widgets
+} // namespace SmoothUIToolKit
diff --git a/src/widgets/selector/smooth_selector/smooth_selector.cpp b/src/widgets/selector/smooth_selector/smooth_selector.cpp
new file mode 100644
index 0000000..ddeb9b7
--- /dev/null
+++ b/src/widgets/selector/smooth_selector/smooth_selector.cpp
@@ -0,0 +1,21 @@
+/**
+ * @file smooth_selector.cpp
+ * @author Forairaaaaa
+ * @brief
+ * @version 0.1
+ * @date 2024-05-20
+ *
+ * @copyright Copyright (c) 2024
+ *
+ */
+#include "smooth_selector.h"
+#include "smooth_option.h"
+
+using namespace SmoothUIToolKit::Widgets::Selector;
+
+void SmoothSelector::onGoTo()
+{
+    // Get selected widget frame
+    auto target_frame = ((SmoothOption*)getSelectedWidget())->getTransition().getTargetPoint();
+    getTransition().moveTo(target_frame);
+}
diff --git a/src/widgets/selector/smooth_selector/smooth_selector.h b/src/widgets/selector/smooth_selector/smooth_selector.h
new file mode 100644
index 0000000..35c231f
--- /dev/null
+++ b/src/widgets/selector/smooth_selector/smooth_selector.h
@@ -0,0 +1,27 @@
+/**
+ * @file smooth_selector.h
+ * @author Forairaaaaa
+ * @brief
+ * @version 0.1
+ * @date 2024-05-20
+ *
+ * @copyright Copyright (c) 2024
+ *
+ */
+#pragma once
+#include "../../smooth_widget/smooth_widget.h"
+#include "../base/selelctor.h"
+
+namespace SmoothUIToolKit
+{
+    namespace Widgets
+    {
+        namespace Selector
+        {
+            class SmoothSelector : public SmoothWidgetBase, public SelectorBase
+            {
+                void onGoTo() override;
+            };
+        } // namespace Selector
+    }     // namespace Widgets
+} // namespace SmoothUIToolKit