bunkerwall tire saver ramps for storage - flat spot and flat tire prevention - 4 pack bunkerwall <b>usage -</b> used to broaden the contact surface between tires and the ground to minimize the effects of flat spots resulting from storage of vehicle.<p><b>bunkerwall</b> is a veteran owned family business that is dedicated first and foremost to customer satisfaction. if our customers are happy then we are happy.<p><b>instructions:</b><p><b>1.</b> place the flat tab of each ramp snugly against the front of each tire.<p><b>2.</b> slowly roll the vehicle up onto the ramp. <p> this method should minimize any sliding of the ramp on flat surfaces. some users have also placed a portion of an old towel under each ramp.<p>