diff --git a/royalslider/royalslider.d.ts b/royalslider/royalslider.d.ts
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+++ b/royalslider/royalslider.d.ts
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+// Type definitions for jQuery royal-slider
+// Project: http://dimsemenov.com/plugins/royal-slider/documentation/
+// Definitions by: Christiaan Rakowski <https://github.com/csrakowski/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../jquery/jquery.d.ts" />
+
+declare module RoyalSlider {
+    export interface RoyalSliderOptions {
+        /**
+        * Enable mobile invert style scrolling. (default: false)
+        */
+        invertscroll?: boolean;
+        /**
+        * Vertical or horizontal scroller? 'x' or 'y'. (default: 'x')
+        */
+        axis?: string;
+        /**
+        * How many pixels must the mouswheel scrolls at a time. (default: 40)
+        */
+        wheel?: number;
+        /**
+        * Enable or disable the mousewheel. (default: true)
+        */
+        scroll?: boolean;
+        /**
+        * Return scrollwheel event to browser if there is no more content. (default: true)
+        */
+        lockscroll?: boolean;
+        /**
+        * Set the size of the scrollbar to auto or a fixed number. (default: 'auto')
+        */
+        size?: any;
+        /**
+        * Set the size of the thumb to auto or a fixed number. (default: 'auto')
+        */
+        sizethumb?: any; 
+    }
+}
+
+interface JQuery {
+    /**
+    * Creates a new royal-slider with the specified, or default, options.
+    *
+    * @param options The options
+    */
+    royalSlider(options?: RoyalSlider.RoyalSliderOptions): JQuery;
+}
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