Description Stop & Go Pocket Tubeless Tire Plugger Kit Seals from the inside out, while staying on the wheel Easily install mushroom shaped rubber plugs into all tubeless tires without dismounting tire from wheel Plugging device 'drives' the plug into the hole with a turning of the hex wrench The plug expands under pressure to fill the punctured area A firm pull on the stem with your pliers seats the mushroom head on the inner wall allowing no air to escape This technology insures maximum reliability while reducing your downtime in any situation Weight: 12 ounces Kit Includes: Nozzle Tire Plugging Device Probe Tool Reamer/Rasp Tool Hex Wrench 15 Mushroom Plugs (5/16" diameter shaft x 3/4" length stem) Retractable Razor Knife Extra Zip Lock Bag Laminated Instructions Vinyl Zippered Pouch (7.5" x 3.5" x 1")