diff --git a/README.md b/README.md
index 3e18bc0..564db3a 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Watch a short **[Demo Video](https://youtu.be/XngUY3PN1IQ)** on YouTube or try i
 - Option to disable shadow for buttons and (or) labels
 - Option to set custom animations
 - Option to set custom icon drawable
-- Support for **normal** `56dp` and **mini** `40dp` button sizes
+- Support for **normal** `56dp` and **mini** `40dp` standard button sizes, but also **big** `72dp`
 - Custom FloatingActionMenu icon animations
 - Option to expand menu up and down
 - Option to show labels to the left and to the right of the menu
diff --git a/library/src/main/java/com/github/clans/fab/FloatingActionButton.java b/library/src/main/java/com/github/clans/fab/FloatingActionButton.java
index ea72dd2..4d3a561 100755
--- a/library/src/main/java/com/github/clans/fab/FloatingActionButton.java
+++ b/library/src/main/java/com/github/clans/fab/FloatingActionButton.java
@@ -42,6 +42,7 @@ public class FloatingActionButton extends ImageButton {
 
     public static final int SIZE_NORMAL = 0;
     public static final int SIZE_MINI = 1;
+    public static final int SIZE_BIG = 2;
 
     int mFabSize;
     boolean mShowShadow;
@@ -178,8 +179,8 @@ private void initHideAnimation(TypedArray attr) {
     }
 
     private int getCircleSize() {
-        return getResources().getDimensionPixelSize(mFabSize == SIZE_NORMAL
-                ? R.dimen.fab_size_normal : R.dimen.fab_size_mini);
+        return getResources().getDimensionPixelSize(mFabSize == SIZE_NORMAL ? R.dimen.fab_size_normal
+                : (mFabSize == SIZE_MINI ? R.dimen.fab_size_mini : R.dimen.fab_size_big));
     }
 
     private int calculateMeasuredWidth() {
diff --git a/library/src/main/res/values/attrs.xml b/library/src/main/res/values/attrs.xml
index 6348758..53f9fef 100755
--- a/library/src/main/res/values/attrs.xml
+++ b/library/src/main/res/values/attrs.xml
@@ -14,6 +14,7 @@
         <attr name="fab_size" format="enum">
             <enum name="normal" value="0" />
             <enum name="mini" value="1" />
+            <enum name="big" value="2" />
         </attr>
         <attr name="fab_showAnimation" format="reference" />
         <attr name="fab_hideAnimation" format="reference" />
@@ -64,6 +65,7 @@
         <attr name="menu_fab_size" format="enum">
             <enum name="normal" value="0" />
             <enum name="mini" value="1" />
+            <enum name="big" value="2" />
         </attr>
         <attr name="menu_labels_style" format="reference" />
         <attr name="menu_shadowColor" format="color" />
diff --git a/library/src/main/res/values/dimens.xml b/library/src/main/res/values/dimens.xml
index e957310..7be5767 100755
--- a/library/src/main/res/values/dimens.xml
+++ b/library/src/main/res/values/dimens.xml
@@ -3,6 +3,7 @@
 
     <dimen name="fab_size_normal">56dp</dimen>
     <dimen name="fab_size_mini">40dp</dimen>
+    <dimen name="fab_size_big">72dp</dimen>
     <dimen name="labels_text_size">14sp</dimen>
 
 </resources>
\ No newline at end of file
diff --git a/sample/src/main/res/layout/floating_menus_activity.xml b/sample/src/main/res/layout/floating_menus_activity.xml
index 0761f01..c10fc7e 100755
--- a/sample/src/main/res/layout/floating_menus_activity.xml
+++ b/sample/src/main/res/layout/floating_menus_activity.xml
@@ -257,6 +257,7 @@
         android:paddingRight="10dp"
         android:paddingBottom="10dp"
         android:paddingLeft="10dp"
+        fab:menu_fab_size="big"
         fab:menu_labels_ellipsize="end"
         fab:menu_labels_singleLine="true"
         fab:menu_backgroundColor="#ccffffff"
@@ -266,21 +267,18 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:src="@drawable/ic_edit"
-            fab:fab_size="mini"
             fab:fab_label="Menu item 1" />
 
         <com.github.clans.fab.FloatingActionButton
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:src="@drawable/ic_edit"
-            fab:fab_size="mini"
             fab:fab_label="Menu item 2" />
 
         <com.github.clans.fab.FloatingActionButton
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:src="@drawable/ic_edit"
-            fab:fab_size="mini"
             fab:fab_label="@string/lorem_ipsum" />
 
     </com.github.clans.fab.FloatingActionMenu>