This is not a stand alone item. Designed to work with an air blast type tire bead seater. The Tire Ring creates a barrier between the bead area of the tire and the rim forcing substantially more of the air blast into the tire. Even in extreme cases enough pressure is retained inside the tire to hold the sidewalls up and the beads firmly against the rim. Made of extremely strong and durable HDPE plastic. The Tire Ring will be there to help with those stubborn tires for many years to come. It is adjustable to work on mulltiple sized tires.