I bought the Lezyne tubeless tire repair kit. thought it worked on my first time, which had two punctures side to side with three plugs each. But when I went to use it it it leaked. Same with a tire on my other bike. It is just a rubber patch with a wire to pull through the hole. But all my tires have fibres on the inside of the tube, so when you sand ti tires. You need a rubber inner coating on the tire for the system to work.