The Gun is a spring-loaded device that drives the air pressure into the hole.
The shaft of the inflator expands under pressure to fill the puncture.
The mushroom head of the inflator sits on the inner wall allowing no air to escape.
The tire does not need dismounting from the wheel.
The inflator enters straight in a puncture.
Mushroom head seats on the inner wall of the tire.

Package Included:
1 x Plug Gun
1 x Nozzle 
2 x Probe Tool
1 x Storage Box
1 Bag Mushroom Plugs