The Stop & Go 1075 spring loaded tire plugging device effortlessly installs mushroom-shaped rubber plugs to repair all flat and punctured tubeless tires while staying on the wheel. The rasp tool is used to clean the puncture. Inserting the mushroom plug into the tire is easily accomplished with a squeeze of the lever. A firm pull on the stem with a pair of pliers (not included) seats the plug against the inner wall allowing no air to escape. The mushroom plug head will expand when seated to cover and seal the punctured area from the inside. This will ensure maximum reliability while reducing your downtime in any situation.