Revolutionary device easily installs mushroom-shaped rubber plugs into all tubeless tires while staying on the wheelPlugging device drives the plug into the hole with a twist of the Allen wrench; plug then expands under pressure to fill the punctured area; a firm pull on the stem seats the mushroom head on the inner wall allowing no air to escapePocket Tire Plugger kit includes plugging device, nozzle adapter, rasp tool, probe tool, retractable razor blade, Allen wrench, 15 mushroom plugs (5/16" dia. x 3/4" L stem) (7.94x19mm), laminated instructions and comes in 3 1/2" x 7 1/2" (8.89x19.05cm) zippered pouch; total weight only 12 oz.Pocket Tire Plugger with COXYGEN contains all the above plus four 16-g. canisters of COXYGEN gas and a 4" flexible adapter with solid brass fittings for the most effective repair possible without dismounting your tubeless tire; kit comes in a 5" x 7 1/2" x 1" (12.7x19.05x2.54cm) zippered pouch; total weight only 18 oz.Made in the U.S.A.NOTE: COXYGEN cartridges cannot be transported on an aircraft.