ALL OUR ROLL CAGES ARE CONSTRUCTED OF 2" DIA 1/8" WALL D.O.M. 1020 TUBING. THIS IS STANDARD ON OUR CAGES. MOST MANUFACTURERS CAGES ARE CONSTRUCTED FROM ECONOMICAL 1010 E.W.S TUBE WHICH IS 30% WEAKER THAN OUR D.O.M. CAGES ARE SHIPPED BY TRUCK, FORWARD AIR OR UPS GROUND. WE CAN CUSTOMIZE YOU CAGE WITH A WIDE VARIETY OF OPTIONS. IT IS SUGGESTED WITH ANY CAGE THAT IT BE CONNECTED TO THE FRAME. COMPLETE OFF ROAD OFFERS THE ONLY MEANS OF DOING THIS WITH ISOLATION BUSHINGS THAT ALLOW FLEX AND REMOVE DRIVELINE VIBRATION.