O-Ring Style Bead Seater • 19.5" • One-Piece Rubber Tube for Mounting Tires • As the Tire is Inflated the Bead Seater Forms a Seal Between the Rim and the Tire Allowing the Air Pressure to Force the Beads Into the Rim Flange • As Proper Pressure is Reached the Bead Seater Slides Out and Over the Rim