2 I saw in my bike tire. I was able to complete the repair with the kit, knowing that it was the first time I used this technique. However, the maneuver is quite tedious (ensuring that the tire is properly inflated because otherwise impossible to insert the worm). You have to press very hard to get the wick, while ensuring that it does not tear and that the tool does not explode your fingers. Because the quality is very basic. But it works, so I am satisfied.