Stop & Go Tubeless Tire Shop Repair Kit Features On the wheel repair for all tubeless tires Mechanical device installs mushroom plugs in tire Stem expands under pressure to fill puncture while the mushroom head seats on inner wall. Kit includes plug gun, lubricant oil, retractable blade and 25 plugs in a 6 x 9 x 1 zippered vinyl pouch Plugs 217-062 in bags of 50 (sold separately) Note: Safety experts recommend that punctured and/or plugged motorcycle tires should be replaced as soon as possible.