To use one of the Gigant Buckles, you need to set them inside the Powered Builder Buckle and crank the lever. You can activate a special move by setting the included three Buckles in the Powered Builder Buckle one by one then cranking the lever. Lastly, other Armed Raise Buckles such as the Hammer Raise Buckle can be set in the Powered Builder Buckle as well. This set cost 5,390 yen and is set for a December 27th release.