Sealey-TC904-Bead-Seating-Tool-19L-Push-Button-Trigger-Sealey-TC904-The-easy-&-instant-way-to-seat-tubeless-tyre-beads-Dumps-air-into-tyre-void-forcing-bead-to-seat-against-rim-for-inflation-Air-release-is-controlled-by-a-diaphragm-valve-&-push-button-trigger-Features-slotted-key-to-prevent-accidental-operation-of-the-trigger-Fully-certified-tank-with-gauge-&-safety-valve-prevents-over-pressurising-Suitable-for-use-on-cars-commercials-agricultural-&-ATV-tyres-Sealey-TC904-Bea