diff --git a/GCPlaceholderTextView/GCPlaceholderTextView.h b/GCPlaceholderTextView/GCPlaceholderTextView.h
index c548034..088dacd 100644
--- a/GCPlaceholderTextView/GCPlaceholderTextView.h
+++ b/GCPlaceholderTextView/GCPlaceholderTextView.h
@@ -8,12 +8,16 @@
 
 #import <UIKit/UIKit.h>
 
-
+IB_DESIGNABLE
 @interface GCPlaceholderTextView : UITextView 
 
-@property(nonatomic, strong) NSString *placeholder;
+@property(nonatomic, strong) IBInspectable NSString *placeholder;
+
+@property (nonatomic, strong) IBInspectable UIColor *realTextColor; //UI_APPEARANCE_SELECTOR
+@property (nonatomic, strong) IBInspectable UIColor *placeholderColor; //UI_APPEARANCE_SELECTOR
 
-@property (nonatomic, strong) UIColor *realTextColor UI_APPEARANCE_SELECTOR;
-@property (nonatomic, strong) UIColor *placeholderColor UI_APPEARANCE_SELECTOR;
+// I don't know what's 'UI_APPEARANCE_SELECTOR' means,
+// but if i don't remove it,
+// `realTextColor` and `placeholderColor` property won't show in the Storyboard;
 
 @end