Bead Expander • 22" to 32" • Use for Standard Bias Ply Tires • Bead Expanders Fit Most Bias Ply Tubeless Tires • A Pliable Neoprene Rubber Tube is Encased in a Tough, Long-Lasting Nylon Cover • Bead Expanders Slip Easily Over the Tire and Withstand Contact With Oil, Grease, Solvents and Acids • Expands the Bead by Compressing Tread to Seat • Features an Over-Pressure Relief Valve and External Pressure Quick Release Valve for Safe Operation